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Fountain Cold Drink Machines: The Ultimate Guide to Choosing the Right One
Fountain cold drink is a fountain cold drink machine. These machines are designed to dispense a wide range of beverages, from classic cola to fruit flavors and more. They work by using a combination of syrup, carbonated water, and ice to create the perfect drink.
Commercial Soda Fountain Machines: A Staple in the Food Service Industry
For businesses, commercial soda fountain machines are a must-have. These machines are designed to handle high volumes of customers and provide a consistent, high-quality drink experience. They’re often used in restaurants, convenience stores, and other food service establishments.
Countertop Soda Fountain Machines: A Convenient Option for a Home or Small Business
For those who want to enjoy fountain cold drinks at home or in a small business, countertop soda fountain machines are a great option. These machines are compact and easy to use, making them perfect for a variety of settings.

The Benefits of Fountain Cold Drinks
So, what makes fountain cold drinks so popular? For one, they’re incredibly convenient. With a fountain cold drink machine, you can enjoy a wide range of beverages at the touch of a button. They’re also often more affordable than buying individual bottles or cans.
“I installed a countertop soda fountain machine in my office break room, and it’s been a huge hit with my employees. They love being able to grab a quick drink on the go, and it’s been a great way to boost morale.”
Frequently Asked Questions
Q: How do I clean and maintain my fountain cold drink machine?
A: To keep your fountain cold drink machine running smoothly, it’s essential to clean and maintain it regularly. This includes cleaning the dispensing nozzles, replacing worn-out parts, and sanitizing the machine.
Q: Can I use a fountain cold drink machine to dispense other types of beverages?
A: While fountain cold drink machines are designed primarily for soda, some models can be used to dispense other types of beverages, such as iced tea or flavored water.
Q: How much does a commercial soda fountain machine cost?
A: The cost of a commercial soda fountain machine can vary widely, depending on the size, features, and brand. On average, you can expect to pay anywhere from a few hundred to several thousand dollars.
Q: Are countertop soda fountain machines easy to use?
A: Yes, countertop soda fountain machines are designed to be easy to use. They’re often simple to operate, and many models come with intuitive controls and clear instructions.
Conclusion
Fountain cold drinks, you can enjoy your favorite beverages in a whole new way. Whether you’re a business owner or just a fan of fountain drinks, there’s a machine out there for you. From fountain cold drink machines to commercial soda fountain machines and countertop soda fountain machines, the options are endless.
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Glenmore House Explosion: Cause, Victims, and Ongoing Investigation in Charlottesville
On August 19, a devastating explosion destroyed a residence at 2331 Ferndown Lane in the Glenmore neighborhood of Albemarle County, Virginia, resulting in one fatality and leaving another victim with severe injuries. The blast, suspected to have been caused by a natural gas leak, was felt over half a mile away and prompted a massive emergency response from Albemarle County Fire Rescue and multiple investigative agencies including the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).
At approximately 6:00 PM on August 19, residents throughout the Glenmore neighborhood and surrounding areas of Charlottesville were shaken by a powerful explosion that completely destroyed a single-family home. The force of the blast sent debris including insulation, bricks, and wood fragments across the neighborhood, damaged at least 12 nearby homes, and was heard by residents as far as 10 miles away.
Emergency responders from Albemarle County Fire Rescue (ACFR) arrived at the scene to find the structure obliterated and two victims requiring immediate medical attention. The tragic incident has prompted a comprehensive investigation into the cause while highlighting critical issues surrounding home gas safety and emergency preparedness.
Timeline of the Glenmore Neighborhood Explosion
The Day of the Blast: August 19
The explosion occurred at approximately 6:00 PM, a time when many residents were home from work. Multiple 911 calls flooded emergency dispatch centers as the blast wave rippled through the community. Witnesses reported that the explosion was powerful enough to rattle windows and shake foundations of homes over half a mile away from the epicenter at 2331 Ferndown Lane.
The shockwave from the explosion was remarkable in its reach. While those within half a mile felt the physical impact, the sound of the blast traveled much farther, with reports coming in from residents up to 10 miles away who heard what they described as a thunderous boom. Many initially speculated about possible causes, with some wondering if lightning had struck the home, though this theory was later examined as part of the official investigation.
Immediate Aftermath and Rescue Efforts
First responders from Albemarle County Fire Rescue arrived to a catastrophic scene. The home had been completely destroyed, reduced to scattered debris and a foundation. Chief Dan Eggleston and his team immediately began search and rescue operations while securing the area to prevent further injuries from unstable structures and potential secondary hazards.
Two victims were located amidst the wreckage. Emergency medical personnel provided immediate care at the scene before transporting both individuals to medical facilities. The scale of the destruction required ACFR to conduct a systematic evaluation of surrounding properties to assess damage and ensure no additional victims were trapped or injured.
In the hours following the explosion, ACFR conducted safety assessments of 202 homes in the vicinity. This comprehensive evaluation identified 12 properties that sustained damage from the blast, ranging from broken windows and structural cracks to more significant impacts from flying debris. The Red Cross was mobilized to assist residents who were displaced or whose homes were deemed temporarily uninhabitable.
Victims and Impact of the Disaster
Remembering Justine M. Joscelyne
The explosion claimed the life of 76-year-old Justine M. Joscelyne. As the investigation continues and the community processes this tragedy, family, friends, and neighbors remember a life cut short by this devastating incident. The loss has deeply affected the Glenmore community, highlighting the human cost of such disasters beyond property damage and statistics.
The Road to Recovery for the Second Victim
An adult male victim survived the explosion but sustained severe burns requiring specialized medical care. He was initially treated at UVA Medical Center before being transferred to the VCU Evans-Haynes Burn Center in Richmond, a facility specifically equipped to handle complex burn injuries.
The decision to transfer the patient to VCU Evans-Haynes Burn Center reflects the specialized nature of burn care. While UVA Medical Center operates as a Level 1 Trauma Center capable of handling the most critical emergency injuries, the Evans-Haynes Burn Center holds ABA (American Burn Association) verification, indicating it meets rigorous standards specifically for burn treatment. This specialization includes dedicated burn units, specialized surgical capabilities, and rehabilitation programs designed for burn recovery.
According to available reports, the victim’s condition has stabilized, though the recovery process from severe burns is typically extensive and can involve multiple surgeries, skin grafts, and prolonged rehabilitation. The specialized care at an ABA-verified center significantly improves outcomes for patients with major burn injuries.

Physical Damage and Blast Radius
The explosion’s destructive power extended well beyond the property at 2331 Ferndown Lane. Albemarne County Fire Rescue’s comprehensive assessment of 202 homes in the surrounding area identified 12 properties with varying degrees of damage. The debris field scattered insulation, bricks, and wood fragments across neighboring yards, streets, and rooftops.
The blast radius demonstrated the tremendous energy released during the explosion. Properties within the immediate vicinity suffered the most significant impacts, with broken windows, damaged siding, and structural concerns requiring professional evaluation. Even homes at greater distances reported items knocked from shelves, cracked drywall, and other signs of the shockwave’s passage.
Residents throughout the neighborhood reported the intense sensory experience of the explosion. Those closest to the site described not just hearing the blast but feeling it as a physical force, with many comparing it to an earthquake or sonic boom. The widespread nature of the damage underscores the importance of the ongoing investigation into preventing similar incidents.
What Caused the Glenmore Explosion? The Official Investigation
The Role of the Fire Marshal and ATF
The investigation into the Glenmore house explosion involves multiple agencies working together to determine the exact cause. The Albemarle County Fire Marshal’s office leads the local investigation, applying expertise in fire science, explosion analysis, and building systems to examine the scene and collect evidence.
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) has also been brought into the investigation. While the ATF is commonly associated with federal criminal investigations, the agency also maintains specialized expertise in explosion and fire analysis through its National Laboratory Center and Certified Fire Investigators. Their involvement provides additional technical resources, particularly in complex explosion investigations where specialized equipment and forensic analysis may be required.
This multi-agency approach ensures that all possible causes are thoroughly examined using the most advanced investigative techniques available. The preliminary investigation phase involves documenting the scene, collecting physical evidence, interviewing witnesses, and examining utility records and building systems.
Ruling Out Theories: Lightning vs. Gas Leak
In the immediate aftermath of the explosion, speculation circulated in the community about possible causes. Some residents initially wondered if a lightning strike might have been responsible, particularly given the dramatic nature of the blast. However, the official investigation has focused primarily on a suspected natural gas leak as the most likely cause.
While the investigation remains ongoing and official conclusions have not been released, the preliminary assessment pointing toward a natural gas leak aligns with common patterns in residential explosions of this magnitude. The complete destruction of the structure is consistent with the explosive force that can result when natural gas accumulates in an enclosed space and finds an ignition source.
Investigators will examine multiple factors including the home’s gas lines, appliances, recent maintenance or renovation work, weather conditions, and any reports of gas odors prior to the explosion. The homeowners were reportedly not present at the property when the explosion occurred, which may provide important information about the timeline of events leading up to the incident.
Understanding the Dangers of Natural Gas Leaks
Natural gas, primarily composed of methane, is odorless in its pure form. Utility companies add a chemical called mercaptan to give gas its distinctive sulfur or rotten egg smell, making leaks detectable. However, several factors can prevent people from recognizing a dangerous gas accumulation in time.
When natural gas leaks into an enclosed space, it can accumulate to dangerous concentrations. Natural gas is lighter than air, so it tends to rise and collect in upper levels of a structure or in poorly ventilated spaces. Once the concentration reaches between 5% and 15% of the air volume, the mixture becomes explosive. Any ignition source—a spark from an electrical switch, a pilot light, static electricity, or even a doorbell—can trigger a devastating explosion.
The explosive force results from the rapid combustion of the accumulated gas, which generates tremendous pressure. In a confined space like a home, this pressure has nowhere to go, resulting in the type of catastrophic structural failure seen in the Glenmore incident. Walls blow outward, roofs lift off foundations, and the structure essentially disintegrates from the inside out.
Community Response and Recovery in Glenmore
Support from the Red Cross and Local Officials
In the wake of the explosion, the American Red Cross activated support services for affected residents. The organization provided emergency assistance to individuals displaced from the 12 damaged homes, offering temporary shelter arrangements, emergency supplies, and connection to additional resources for those facing extended displacement.
Chief Dan Eggleston of Albemarle County Fire Rescue has maintained communication with the community throughout the investigation, providing updates on the status of the inquiry and safety information for residents. Local officials have emphasized the thoroughness of the ongoing investigation and their commitment to understanding exactly what occurred to help prevent similar incidents.
The coordinated response demonstrates the importance of emergency preparedness planning at the local level. From the initial 911 calls through the ongoing recovery process, the integration of fire rescue, law enforcement, emergency management, and community support organizations has been essential in addressing both immediate safety concerns and longer-term recovery needs.
How Neighbors are Helping Neighbors
The Glenmore community has rallied around those affected by the explosion. Neighbors have offered practical support ranging from temporary housing and meals to assistance with property cleanup and navigation of insurance claims. This grassroots response complements official aid services and reflects the tight-knit nature of the neighborhood.
Community members have also shared information and updates through local online forums, helping to ensure that accurate information reaches residents while combating rumors and speculation. This informal communication network has proven valuable in keeping the neighborhood informed about the investigation’s progress and available support resources.
Safety Lessons from the Tragedy
What to Do If You Smell Natural Gas in Your Home
If you detect the distinctive sulfur or rotten egg smell of natural gas in your home, immediate action is critical. Follow these essential safety steps:
1. Leave immediately. Do not waste time investigating the source or gathering belongings. Get everyone out of the building right away.
2. Do not use any electrical devices, light switches, appliances, garage door openers, doorbells, or phones while inside. Any spark could ignite accumulated gas. Do not even turn off lights that are already on—just leave.
3. Do not start your vehicle if it is in an attached garage, as the ignition could provide a spark source.
4. Once safely outside and away from the building, call 911 and your gas utility company from a cell phone or neighbor’s phone.
5. Do not re-enter the building until utility company representatives and emergency personnel have declared it safe.
Remember that natural gas odor can sometimes be faint or masked by other smells. If you have any suspicion of a gas leak, treat it as a serious emergency and evacuate.

Home Gas Line and Appliance Maintenance Checklist
Regular maintenance and inspection of natural gas systems can help prevent dangerous situations. Homeowners should:
Schedule annual inspections of gas furnaces, water heaters, and other gas appliances by qualified technicians. These professionals can identify potential problems like corroded connections, faulty regulators, or improper ventilation before they become dangerous.
Install carbon monoxide detectors on every level of your home and near sleeping areas. While carbon monoxide detectors don’t detect natural gas directly, they can alert you to incomplete combustion from gas appliances, which may indicate a problem.
Be aware of the location of your home’s main gas shutoff valve and know how to operate it. In an emergency, shutting off gas at the meter can be critical, though this should only be done if you can do so safely.
Pay attention to warning signs including unusual hissing sounds near gas lines, dead vegetation over buried gas lines, dirt or debris blowing from the ground, or visible damage to gas line connections.
Never perform DIY repairs on gas lines or appliances. Always hire licensed, qualified professionals for any work involving natural gas systems. The risks of improper installation or repair are simply too great.
If you’re planning home renovations or landscaping that involves digging, always call 811 or your local utility locating service first. Striking a buried gas line during excavation is a common cause of gas leaks and can result in immediate danger.
Understanding Trauma and Burn Care in Virginia
The distinction between Level 1 Trauma Centers and specialized burn centers is important to understand, as it explains the transfer of the Glenmore explosion victim from UVA Medical Center to VCU Evans-Haynes Burn Center.
Level 1 Trauma Centers, such as UVA Medical Center, are the highest level of trauma care facilities. They provide comprehensive emergency care for all types of traumatic injuries 24 hours a day, with immediate access to specialized surgeons, anesthesiologists, and other critical care resources. These centers handle the most severe and complex trauma cases, from motor vehicle accidents to gunshot wounds to industrial injuries.
However, severe burn injuries require additional specialized expertise beyond general trauma care. ABA-verified burn centers like VCU Evans-Haynes Burn Center must meet stringent standards including dedicated burn units, specialized burn surgeons, rehabilitation services specific to burn recovery, and proven outcomes in burn care. These facilities have the specific infrastructure, including burn operating rooms and specialized wound care protocols, necessary for optimal burn treatment.
In Virginia, the coordinated trauma care system allows for initial stabilization at trauma centers followed by transfer to specialized facilities when needed. This ensures patients receive the right care at the right facility, maximizing their chances for the best possible recovery. The Evans-Haynes Burn Center, alongside facilities like VCU’s DeCamp Burn & Wound Healing Center, represents the highest level of specialized burn care available in the region.
Frequently Asked Questions
What caused the Glenmore house explosion?
The explosion is suspected to have been caused by a natural gas leak, though the official investigation by the Albemarle County Fire Marshal and ATF is still ongoing. Final conclusions have not yet been released.
Who was killed in the Glenmore explosion?
The victim has been identified as 76-year-old Justine M. Joscelyne.
How many people were hurt in the Glenmore explosion?
Two victims were involved in the incident. One person tragically died, and an adult male victim was hospitalized with severe burns and is recovering at VCU Evans-Haynes Burn Center.
How far away was the explosion felt?
Residents reported feeling the blast over half a mile away and hearing it up to 10 miles from the explosion site. The force was powerful enough to rattle windows and shake foundations throughout the Glenmore neighborhood.
Were the homeowners home during the explosion?
According to officials, the homeowners were not at the property at the time of the explosion.
What should I do if I smell gas in my house?
If you smell gas, immediately evacuate the building without using any electrical devices, switches, or phones inside. Do not investigate the source. Once safely outside, call 911 and your gas utility company. Do not re-enter until emergency personnel declare it safe.
The Glenmore house explosion serves as a tragic reminder of the importance of natural gas safety, regular maintenance of home systems, and emergency preparedness. As the investigation continues, the findings will provide valuable information to help prevent similar incidents in the future. The community’s resilience and support for affected families demonstrates the strength of neighborhood bonds even in the face of devastating loss.
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Window Functions vs. CTEs in SQL: They Are NOT the Same (Here’s the Difference)
Window Functions vs. CTEs in SQL If you’re asking whether SQL window functions are the same as CTEs (Common Table Expressions), the short and critical answer is no. While they can sometimes be used to solve similar problems, they are fundamentally different tools with distinct purposes. Confusing them can lead to major performance issues and unreadable code. This guide will clearly explain the differences, show you when to use each, and demonstrate how they can work together powerfully.
Understanding the difference between window functions and CTEs is essential for writing efficient SQL queries. Many developers encounter the term ‘window functions SQL is the same as CTE’ in their research, but this is a misconception that needs clarification. Let’s break down what each tool does and why they’re not interchangeable.
Core Definitions: What Are They For?
Before diving into comparisons, it’s crucial to understand what each feature actually does and why it exists in SQL.
Common Table Expressions (CTEs): The Query Organizer
A Common Table Expression (CTE) is defined using the WITH clause and creates a named, temporary result set that exists only for the duration of a single query. Think of it as creating a temporary ‘view’ that you can reference within your query.
The primary purposes of CTEs include:
- Improving query readability by breaking complex logic into manageable, named steps
- Enabling recursive queries for hierarchical data (like organizational charts or category trees)
- Allowing you to reference the same subquery multiple times without rewriting it
- Organizing multi-step data transformations in a clear, sequential manner
CTEs are part of the SQL standard and are supported by major database systems including PostgreSQL, SQL Server, MySQL, and Oracle. They create what’s essentially a named subquery that can make your code more maintainable and easier to debug.
Window Functions: The Row-Level Analyst
Window functions are defined using the OVER() clause and perform calculations across a set of table rows that are related to the current row. Unlike aggregate functions with GROUP BY, window functions keep all original rows in your result set.
The primary purposes of window functions include:
- Performing row-level calculations without collapsing your data (unlike GROUP BY)
- Creating rankings and row numbers (RANK(), DENSE_RANK(), ROW_NUMBER())
- Calculating running totals, moving averages, and cumulative sums
- Comparing rows to their neighbors using LAG() and LEAD() functions
- Computing percentiles and statistical functions over specific partitions of data
The OVER() clause defines the ‘window’ of rows to consider for each calculation. You can partition this window using PARTITION BY and order it using ORDER BY. Window functions are particularly powerful for analytics because they add calculated columns without changing the number of rows returned.
Side-by-Side Comparison: Purpose, Syntax, and Output
The best way to understand the difference between CTE and window functions is through direct comparison. This table clarifies their distinct roles:
| Feature | Common Table Expression (CTE) | Window Function |
| Primary Purpose | Organizes and structures complex queries | Performs calculations across a set of table rows |
| Key Concept | Creates a named, temporary result set | Defines a ‘window’ of rows for calculations per row |
| Effect on Rows | Can filter/aggregate to reduce rows | Keeps all original rows; adds calculated columns |
| Core Syntax | WITH cte_name AS (SELECT …) | function() OVER (PARTITION BY … ORDER BY …) |
| Typical Use Cases | Multi-step queries, recursion, reusing subqueries | Rankings, running totals, moving averages, LAG/LEAD |
| Analogy | Preparing ingredients before cooking the main dish | Adding a commentary track to a movie (original intact) |
This comparison makes it clear: CTEs are about query organization, while window functions are about row-level analytics. Understanding this distinction is fundamental to writing effective SQL.
The Performance Showdown: Why Choosing Wrong Matters
Performance differences between CTEs and window functions can be dramatic, especially for common analytical tasks like calculating running totals. In real-world benchmarks, choosing the right tool can mean the difference between a query that runs in milliseconds versus one that takes several seconds.
For example, when calculating running totals on a dataset with 10,000 rows, a correlated subquery approach (which a CTE might use) can be 100 times slower than using a window function with SUM() OVER(). The performance gap widens as your dataset grows.

Why window functions are faster for analytical tasks:
- Single-pass processing: Window functions typically process the data in a single scan with O(N log N) complexity for ordered operations
- No correlated subqueries: CTEs used for running totals often require correlated subqueries with O(N²) complexity, recalculating for each row
- Optimized execution: Database engines have specialized optimizations for window function execution plans
- Memory efficiency: Window functions work with sorted streams rather than materializing intermediate results
You can verify this performance difference yourself using EXPLAIN ANALYZE in PostgreSQL or the execution plan viewer in SQL Server. The execution plan will show dramatically different costs and operation types between window functions and correlated subquery approaches.
Important note: CTEs aren’t inherently slow. When used for their intended purpose (organizing complex queries, breaking down logic, or enabling recursion), they perform excellently. The performance issue arises when developers try to use CTEs with correlated subqueries for tasks that window functions handle natively and more efficiently.
When to Use Which? (Decision Guide)
Knowing the difference is only half the battle. You also need to know when to reach for each tool. Here’s your practical decision guide.
Use a CTE When You Need To…
- Make a complex query readable: Break down a query with multiple joins, subqueries, or transformations into logical, named steps that you and your team can understand and maintain.
- Reference the same subquery multiple times: If you need to use the same intermediate result set more than once in your query, a CTE lets you define it once and reference it multiple times without repetition.
- Query hierarchical data: Recursive CTEs are the standard way to traverse hierarchical structures like organization charts, category trees, or bill-of-materials relationships.
- Debug complex queries step-by-step: CTEs allow you to isolate and test each transformation independently, making it easier to identify issues in complex data pipelines.
- Prepare data for further analysis: Use CTEs to filter, join, and clean your data before applying window functions or final aggregations.
Use a Window Function When You Need To…
- Calculate values based on related rows: When you need to compute rankings (RANK(), DENSE_RANK(), ROW_NUMBER()), percentiles, or any calculation that depends on a set of related rows.
- Create running totals or moving averages: Window functions with frame clauses (ROWS BETWEEN) excel at cumulative calculations without collapsing your result set.
- Compare a row to its neighbors: LAG() and LEAD() functions let you access values from previous or next rows, perfect for time-series analysis and trend detection.
- Keep all detail rows in results: Unlike GROUP BY, window functions preserve every row in your result set while adding calculated columns, essential for detailed reports.
- Perform partition-level analytics: PARTITION BY lets you calculate statistics within groups (like sales by region) while seeing all individual transactions.
The Power Combo: Using CTEs and Window Functions Together
The real power emerges when you combine both tools. CTEs prepare and organize your data, then window functions perform sophisticated analytics on that clean data. This is how professional data analysts and engineers write production SQL.
Example: Monthly Sales Trend Analysis
Let’s say you need to analyze sales performance with these requirements: calculate each product’s monthly sales, rank products within each month, and show the running total of sales for each product across months.
Step 1 – Use a CTE to prepare clean monthly data:
The CTE aggregates raw transaction data into monthly summaries, joining with product and customer information as needed. This gives you a clean, organized dataset to work with.
Step 2 – Apply window functions for analytics:
On the clean CTE result, you can now use RANK() OVER (PARTITION BY month ORDER BY sales DESC) to rank products each month, and SUM() OVER (PARTITION BY product ORDER BY month ROWS UNBOUNDED PRECEDING) for running totals.
This approach combines the organizational clarity of CTEs with the analytical power of window functions. Your query is readable, maintainable, and performs efficiently. This pattern is commonly used in business intelligence dashboards, financial reporting, and operational analytics.
Real-world applications of this pattern:
- Customer churn analysis: CTE to identify active periods, window functions to calculate metrics like time since last purchase
- Inventory forecasting: CTE to clean and aggregate stock movements, window functions for moving averages and trend detection
- Website analytics: CTE to sessionize user events, window functions to calculate session durations and conversion funnels
- Financial reporting: CTE to prepare transaction ledgers, window functions for period-over-period comparisons and YTD totals
Frequently Asked Questions (FAQ)
Are CTEs more efficient than window functions?
It’s not an either-or comparison. CTEs and window functions serve different purposes. For analytical calculations like running totals or rankings, window functions are significantly more efficient. CTEs excel at organizing queries and breaking down complex logic. The best queries often use both: CTEs for organization and window functions for analytics.
Can I use a CTE instead of a window function for ranking?
Technically yes, but you shouldn’t. You could use a CTE with variables or correlated subqueries to calculate ranks, but window functions like RANK() OVER() are purpose-built for this task, perform better, and produce cleaner code. Use the right tool for the job.
Why is my query with a CTE so slow? Could a window function help?
If your CTE uses correlated subqueries for analytical calculations, switching to window functions will likely provide dramatic performance improvements. Check your execution plan using EXPLAIN ANALYZE. Look for patterns where you’re calculating aggregates for each row based on conditions — these are prime candidates for window functions.
Is a CTE just a fancy subquery?
Essentially, yes, but with important benefits. A CTE is a named subquery that improves readability and can be referenced multiple times in the same query. Recursive CTEs add functionality that regular subqueries can’t provide. While the execution might be similar to subqueries in some databases, the organizational benefits are substantial.
Which one is more important to learn for a SQL interview?
Both are essential for modern SQL work and commonly appear in technical interviews. If you must prioritize, learn window functions first — they solve a wider range of practical analytical problems and demonstrate strong SQL skills. However, you should be comfortable with both, as they’re complementary tools in your SQL toolkit.
Can I combine multiple CTEs in one query?
Absolutely. You can chain multiple CTEs using commas, where later CTEs can reference earlier ones. This is excellent for building complex data pipelines. For example: WITH step1 AS (…), step2 AS (SELECT * FROM step1 WHERE …), step3 AS (SELECT * FROM step2 …) SELECT * FROM step3. This creates a clear, debuggable data transformation pipeline.
Do all databases support both CTEs and window functions?
Most modern relational databases support both. PostgreSQL, SQL Server, Oracle, and MySQL (8.0+) all have comprehensive support for CTEs and window functions. Older database versions or systems might have limited support, so check your specific database documentation. SQLite added window function support in version 3.25.0.
Conclusion
Window functions and CTEs are not the same — they’re complementary tools that serve different purposes in your SQL toolkit. CTEs organize and structure your queries, making complex logic readable and maintainable. Window functions perform sophisticated row-level analytics without collapsing your data.
Understanding when to use each tool is crucial for writing efficient, readable SQL. Use CTEs to break down complexity, enable recursion, and prepare clean datasets. Use window functions for rankings, running totals, moving averages, and any analysis that requires keeping all rows visible while adding calculated columns.
The real mastery comes from combining both: CTEs to organize your data preparation steps, followed by window functions to perform powerful analytics on that clean foundation. This approach creates SQL that is both performant and maintainable — exactly what professional database developers aim for in production environments.
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Copywriting for Beginners: Your Ultimate Guide to Start & Succeed in 2026
Copywriting for Beginners Copywriting is the craft of writing text (called “copy”) designed to persuade readers to take a specific action. Unlike general writing that aims to inform or entertain, copywriting has a clear goal: to sell a product, generate leads, build brand awareness, or inspire clicks.
From email subject lines to billboard headlines, from product descriptions to social media ads, copywriting is everywhere. It’s the invisible force behind marketing that turns casual browsers into engaged customers.
Copywriting vs. Content Writing: Key Differences
While the terms are often confused, copywriting and content writing serve different purposes:
| Aspect | Copywriting | Content Writing |
|---|---|---|
| Primary Goal | Drive immediate action (buy, click, sign up) | Educate, inform, or entertain |
| Tone | Persuasive, urgent, benefits-focused | Informative, conversational, educational |
| Length | Usually short and punchy | Can be long-form (blogs, articles, guides) |
| Examples | Ads, sales pages, email campaigns, CTAs | Blog posts, how-to guides, case studies |
| Measurement | Conversion rates, click-through rates, sales | Traffic, engagement, time on page |
Both skills are valuable, and many professionals do both. But copywriting specifically focuses on conversion and persuasion.
Why Learn Copywriting? High Demand & Career Flexibility
The digital economy runs on words that convert. Businesses of all sizes need copywriters to help them connect with customers and drive sales. According to recent industry reports, demand for skilled copywriters continues to grow as companies expand their digital presence.
As a copywriter, you can choose your path: work as a freelancer with location independence and flexible hours, or join a company’s marketing team for stability and benefits. You can specialize in industries you’re passionate about, from tech startups to healthcare to e-commerce. The skills are transferable, the work is creative, and the income potential is strong.
The 6 Foundational Skills Every Beginner Copywriter Needs
Before you write your first sales page, you need to build a solid foundation. Here are the core skills that separate amateur copy from professional, conversion-driving work:
Skill 1: Strong, Clear Writing & Grammar
Great copy starts with clarity. You don’t need to be a literary genius, but you do need to express ideas cleanly and correctly. Poor grammar undermines credibility, and confusing sentences lose readers.
Focus on writing in simple, direct sentences. Avoid jargon unless your audience expects it. Read your work aloud to catch awkward phrasing. Tools like Grammarly can help, but developing your own editorial eye is crucial.
Skill 2: Customer & Market Research Insight
The best copywriters are obsessed with understanding their audience. Who are you writing for? What keeps them up at night? What are their desires, frustrations, and objections?
Before writing a single word, dig into customer reviews, browse forums where your audience hangs out, study competitor messaging, and if possible, talk directly to potential customers. The insights you gather become the raw material for persuasive copy.
Skill 3: Translating Features into Compelling Benefits
This is where beginners often stumble. Features describe what a product is or does. Benefits explain why that matters to the customer.
Feature: “Our app has a built-in timer.”
Benefit: “Stay on track and boost productivity without switching between apps.”
Customers don’t buy features—they buy better versions of themselves. Train yourself to always ask: “So what? Why does this matter to the reader?” That’s your benefit.
Skill 4: Mastering Classic Formulas (AIDA, PAS, BAB)
You don’t have to reinvent the wheel. Proven copywriting formulas give you a structure to follow, especially when you’re starting out.
AIDA is the most famous:
- Attention: Grab the reader with a compelling headline
- Interest: Build curiosity with relevant details
- Desire: Show them why they need this
- Action: Tell them exactly what to do next
Example:
- Attention: “Tired of wasting hours on admin tasks?”
- Interest: “Our automation software handles invoicing, scheduling, and follow-ups in one place.”
- Desire: “Imagine reclaiming 10+ hours every week to focus on what you love.”
- Action: “Start your free trial today—no credit card required.”
Other useful formulas include PAS (Problem-Agitate-Solution) and BAB (Before-After-Bridge). Learn these patterns, and you’ll always have a starting point.
Skill 5: Headline & Hook Crafting
Your headline is the most important sentence you’ll write. If it doesn’t grab attention, nothing else matters because readers won’t stick around.
Great headlines promise a clear benefit, create curiosity, or tap into an emotion. They’re specific, not vague. Compare:
- Weak: “Improve Your Productivity”
- Strong: “How I Doubled My Output in 30 Days Without Working Longer Hours”
Practice writing 10-20 headlines for every piece of copy. Study what works in your niche. Swipe files (collections of effective headlines) become invaluable.

Skill 6: Adapting to Different Brand Voices
A playful DTC brand sounds different from a corporate law firm. As a copywriter, you’ll need to match the tone and style of each client or project.
Study brand guidelines when available. Read existing content to internalize the voice. Ask yourself: Is this brand formal or casual? Friendly or authoritative? Witty or straightforward? Your copy should feel like a natural extension of the brand, not a jarring shift.
Your First 7 Steps: From Learning to First Client
Ready to go from beginner to paid copywriter? Here’s your action plan:
Step 1: Immerse Yourself in Learning
Start by consuming high-quality copywriting education. You don’t need expensive courses right away—plenty of free resources exist.
Recommended books:
- “The Copywriter’s Handbook” by Robert Bly (timeless fundamentals)
- “Made to Stick” by Chip and Dan Heath (how ideas stick)
- “Influence” by Robert Cialdini (psychology of persuasion)
Top blogs:
- Copyblogger (content marketing and copywriting)
- Copyhackers (conversion-focused copy)
YouTube channels:
- Search for channels dedicated to direct response copywriting and marketing fundamentals
Spend 2-4 weeks absorbing the basics. Take notes on formulas, strategies, and examples that resonate.
Step 2: Practice Relentlessly with Exercises
Knowledge without practice is useless. Start flexing your copywriting muscles daily.
Practice exercises:
- Rewrite ads: Find 5 ads you see online and rewrite them. What would make them stronger?
- Use prompts: “Write an email subject line for a productivity app” or “Create a product description for eco-friendly water bottles”
- Copy by hand: Take proven sales letters and copy them word-for-word. This trains your brain to recognize effective patterns
Set a goal of writing for 30 minutes daily. The repetition builds instinct.
Step 3: Find Your Starter Niche & Services
While you can be a generalist, starting with a focus helps you stand out and learn faster. Consider:
Popular niches:
- E-commerce (product descriptions, email campaigns)
- SaaS/Tech (landing pages, onboarding emails)
- Health & Wellness (blog posts, sales pages)
- Real Estate (listings, newsletters)
Common services beginners offer:
- Email copywriting
- Social media captions
- Website copy (About pages, service descriptions)
- Blog posts with SEO keywords
- Product descriptions
Choose something that interests you or where you have existing knowledge. You’ll write better copy when you understand the audience.
Step 4: Build a “No-Experience” Portfolio
Here’s the secret: you don’t need clients to have a portfolio. You create spec work—mock projects that showcase your skills.
How to create 3-5 portfolio samples:
- Pick real companies you admire (preferably smaller ones without perfect copy)
- Identify a specific project: “Email welcome sequence for X brand” or “Landing page for Y product”
- Write it as if you were hired: Include context (brief, target audience, goals)
- Present it professionally: Use Google Docs or simple PDFs with clean formatting
Examples:
- A 5-email welcome sequence for a fictional meal kit service
- A landing page for an existing app that you’ve rewritten
- Social media ads for a local business (even if they didn’t hire you)
Label these clearly as “spec work” or “concept project” to maintain integrity. What matters is demonstrating your skill.
Step 5: Craft Your Elevator Pitch & Personal Brand
When someone asks, “What do you do?” you need a clear answer.
Framework: “I help [target audience] [achieve specific result] through [your skill/service].”
Example: “I help e-commerce brands increase sales through conversion-focused email campaigns and product descriptions.”
Create a simple online presence:
- A LinkedIn profile highlighting your copywriting focus
- Optional: A basic website or portfolio page (free tools like Google Sites work fine)
- A professional email address
You don’t need to be fancy. You need to be findable and credible.
Step 6: Strategically Network to Find Clients
“Tell your friends and family” is common advice, but it’s rarely enough. Here’s how to proactively find opportunities:
Networking strategies:
- Join online communities: Reddit (r/copywriting, r/freelance), Facebook groups for copywriters and entrepreneurs
- Engage on LinkedIn: Comment thoughtfully on posts from potential clients, share copywriting insights
- Cold outreach: Identify 10 small businesses with weak website copy, send a personalized email offering a free rewrite of one page
- Freelance platforms: Upwork, Fiverr, and Freelancer can help you land early gigs (expect lower rates initially)
The goal isn’t to spam—it’s to build genuine relationships and demonstrate value.
Step 7: Price Your Services & Land the First Project
Pricing is intimidating for beginners, but here’s a practical approach:
Beginner rates:
- Hourly: $25-50/hour (while learning)
- Project-based: $100-300 for small projects (email sequence, landing page)
- Retainer: $500-1,000/month for ongoing work (5-10 hours)
Start lower to gain experience and testimonials, then raise rates as you improve. Don’t work for free unless it’s for a nonprofit you care about or a major brand that’ll make an impressive portfolio piece.
Landing your first client:
- Reach out to 20 potential clients (cold email, warm connections, freelance platforms)
- Offer a clear, specific service (“I’ll write your welcome email sequence”)
- Show proof (portfolio samples, even if they’re spec work)
- Make it easy to say yes (clear pricing, simple process)
It only takes one client to become a “real” copywriter. Stay persistent.
Choosing Your Path: Freelance vs. In-House Copywriting
Once you’ve built foundational skills, you’ll face a choice: go freelance or join a team?
The Freelance Copywriter: Freedom & Hustle
Pros:
- Work from anywhere with flexible hours
- Choose your clients and projects
- Higher income potential (you set rates)
- Variety of industries and challenges
Cons:
- Inconsistent income, especially starting out
- You handle everything: sales, client management, accounting
- No benefits (health insurance, paid time off)
- Can feel isolating without a team
How to start:
- Build your portfolio (spec work is fine)
- Set up a simple business (sole proprietorship works initially)
- Create systems for client onboarding, invoicing, and project management
- Market yourself consistently
Freelancing suits self-starters who value autonomy and don’t mind the hustle.
The In-House Copywriter: Stability & Specialization
Pros:
- Steady paycheck and benefits
- Team collaboration and mentorship
- Deep expertise in one brand/industry
- Clear career progression
Cons:
- Less variety (you’ll write for one brand repeatedly)
- Fixed hours and location (though remote is increasingly common)
- Income ceiling (raises are incremental)
- Office politics and approval processes
How to get hired:
- Tailor your resume to highlight writing and marketing skills
- Include portfolio samples relevant to the industry
- Learn the company’s brand voice before interviewing
- Consider entry-level marketing roles to break in
In-house roles suit those who prefer structure, teamwork, and gradual career growth.
Popular Copywriting Niches & Specializations
As you gain experience, specializing can increase your value and rates:
- Email copywriting: Welcome sequences, promotional campaigns, newsletters
- Direct response: Sales letters, VSLs (video sales letters), long-form landing pages
- SEO copywriting: Blog posts, website content optimized for search engines
- Social media copy: Captions, ads, engagement posts
- Technical copywriting: SaaS products, B2B tech, whitepapers
- E-commerce: Product descriptions, category pages, abandoned cart emails
You can also specialize by industry (healthcare, finance, real estate) or by outcome (conversion rate optimization, brand storytelling).
Modern Copywriting: Using AI Tools Ethically (2026 Update)
Artificial intelligence has transformed the copywriting landscape. Tools like ChatGPT, Jasper, and Copy.ai can generate draft copy in seconds. Does this mean copywriters are obsolete?
Not at all—but it does mean the role is evolving.
AI as a Brainstorming & Drafting Partner
Smart copywriters use AI to:
- Generate headline options: Get 20 variations in seconds, then refine the best ones
- Overcome writer’s block: Use AI to draft an outline or rough first pass
- Research faster: Summarize competitor copy or gather information quickly
- A/B test ideas: Create multiple versions to see what resonates
AI excels at producing volume and variety. It’s a productivity multiplier, not a replacement.
The Irreplaceable Human Touch: Editing & Strategy
Here’s what AI can’t do (yet):
- Understand nuanced brand voice: AI copy often sounds generic without heavy editing
- Conduct deep audience research: Insight comes from conversations, reviews, and empathy
- Make strategic decisions: What should you write about? What’s the right offer? What objections matter most?
- Edit for persuasion: AI drafts are starting points; skilled copywriters refine for maximum impact
The future belongs to copywriters who leverage AI for efficiency while adding the strategic thinking, emotional intelligence, and brand expertise that only humans provide.
Embrace AI as a tool. Your value is in what you do with it.
Essential Copywriting Tools & Resources to Get Started
You don’t need a huge budget to start copywriting. Here are the essentials:
Free Tools
- Google Docs: Writing and collaboration
- Grammarly (free version): Grammar and clarity checks
- CoSchedule Headline Analyzer: Rate your headlines (free online tool)
- Hemingway Editor: Simplify and strengthen your writing
- Answer the Public: Find questions your audience is asking
Learning Resources
Books:
- “Everybody Writes” by Ann Handley
- “Cashvertising” by Drew Eric Whitman
- Classic sales letters (Gary Halbert, David Ogilvy)
Blogs & Communities:
- Copyblogger
- Copyhackers
- r/copywriting on Reddit
Courses (optional):
- AWAI’s Accelerated Program for Six-Figure Copywriting
- Copyhackers’ 10x Emails course
- YouTube channels (many offer free crash courses)
Community
Joining a community accelerates learning. Look for:
- Copy Posse Collective
- Copywriting groups on Facebook and LinkedIn
- Local marketing meetups or writer groups
Learning from peers, getting feedback, and staying motivated becomes easier when you’re not going alone.
Frequently Asked Questions
What exactly does a copywriter do all day?
A copywriter’s day varies based on whether they’re freelance or in-house. Typically, you’ll spend time researching audiences and competitors, writing copy (emails, ads, web pages), editing drafts, collaborating with designers or marketers, and refining based on feedback or performance data. Freelancers also handle client communication and business tasks.
Can I become a copywriter with no degree or experience?
Absolutely. Copywriting is a skills-based field. While a degree in marketing, English, or communications can help, many successful copywriters are self-taught. What matters is your ability to write persuasively, understand audiences, and deliver results. Build a portfolio with spec work, practice consistently, and you can break in.
How much can a beginner freelance copywriter charge?
Beginners typically charge $25-50/hour or $100-300 per small project (like an email sequence or landing page). As you gain experience and results, you can raise rates significantly. Experienced copywriters often charge $100-200+/hour or $1,000-5,000+ per project depending on complexity and industry.
What’s the fastest way to build a portfolio with zero clients?
Create spec work: write copy for real companies as if they hired you. Choose 3-5 projects (email sequences, landing pages, ads) for brands you admire, write them professionally, and present them in a simple portfolio. Label them as concept work or spec projects. This demonstrates your skill without needing paid clients first.
What’s the difference between a niche and a specialization?
A niche refers to the industry or audience you serve (e.g., SaaS companies, fitness brands, real estate). A specialization refers to the type of copy you write (e.g., email campaigns, SEO blog posts, sales pages). You might niche down to “email copywriting for e-commerce brands”—combining both for maximum focus.
Is learning AI copywriting tools necessary now?
Not required, but highly beneficial. AI tools like ChatGPT and Jasper can speed up research, brainstorming, and drafting. However, human copywriters still provide strategic thinking, brand voice refinement, and persuasion expertise that AI lacks. Learn to use AI as a productivity tool, not a crutch, and you’ll stay competitive.
How do I know if my copy is good?
Good copy achieves its goal—whether that’s clicks, conversions, or engagement. In the beginning, focus on clarity, strong benefits, and clear calls-to-action. Get feedback from other copywriters or your target audience. As you gain clients, track performance: did your email get opened? Did the landing page convert? Data tells the truth.
Start Your Copywriting Journey Today
Becoming a copywriter doesn’t require a special degree, expensive courses, or years of preparation. It requires curiosity, consistent practice, and a willingness to learn from every piece of copy you write.
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