18 Oct 2022 Kateryna Koidan SQL Beginners: Questions to Ask Before Writing a Query SQL is known for its easy-to-follow syntax that even beginners can understand pretty quickly. Still, to write your own SQL queries, you need to know the basics. Let’s explore what things need to be considered before writing a SQL query. If you are looking for a career in data analysis or just want to work effectively and independently with data in any analytical position, you’ll need to master SQL. Luckily, this programming language is beginner-friendly and can be learned just in a few months with the right learning sources. Read more 22 Sep 2022 Kateryna Koidan Roadmap to Becoming a Data Analyst What is a data analyst? What are their daily duties, and what skills do they need? In this article, I discuss the role of data analysts and share a step-by-step guide on how to become one. As organizations start to realize the value of their data on their customers, target audience, competitors, suppliers, and other market players, the role of data analysts becomes more important. To become a successful data analyst who can bring real value to the organization, you need to possess a specific set of skills. Read more 1 Sep 2022 Kateryna Koidan Learn SQL for Data Science With LearnSQL.com If you are interested in a data science career and have looked at a few relevant job descriptions, you've probably noticed many leading tech companies expect their data scientists to know SQL. Let's see how you can learn SQL for data science and become more valuable to any data-driven organization. A data scientist is a complex technical role that expects a combination of the skills of a statistician, a business analyst, and an IT expert. Read more 30 Aug 2022 Kateryna Koidan How to Learn SQL for Marketing Analytics With LearnSQL.com SQL is a valuable tool for any experts wanting to make data-driven decisions. Marketers are no exception. Let's explore how to design an effective learning path for SQL in marketing. SQL for marketing analytics is used to understand customers better and to increase the effectiveness of marketing campaigns. If you work in marketing and want to join other marketing experts who have already benefited from this tool, you need to learn SQL. Read more 28 Jul 2022 Kateryna Koidan How to Set Up a Corporate SQL Training Program Are you looking to set up a business or corporate SQL training for your company's employees? In this article, we’ll discuss how to build an efficient SQL training program and why the LearnSQL.com platform is the choice of leading tech companies. If you are responsible for employees’ professional development – especially in a data-driven company – you know that SQL is essential for anyone who works with data. This programming language can enhance the performance of data and business analysts (for whom SQL is often a primary tool) as well as marketers, salespeople, HR specialists, auditors, and many more. Read more 21 Jul 2022 Kateryna Koidan Use SQL for Data Analysis With Google Analytics 4 Google Analytics 4 offers data analysts powerful new capabilities, and learning how to maximize its potential is essential. In this article, I'll explore how using SQL with Google Analytics 4 can enhance your data analysis and lead to more insightful results. Google Analytics 4 is a next-generation analytical solution designed for cross-platform measurement and analysis, helping data analysts and marketers understand their audience more effectively. The quality of your data analysis with Google Analytics 4 depends heavily on your ability to work with tools like Data Studio and BigQuery, and thus, proficiency in SQL is crucial. Read more 28 Jun 2022 Kateryna Koidan What Is SQL? What is SQL SQL, or Structured Query Language, is a programming language used to talk to databases. With SQL, you can store, manipulate, and retrieve data from relational databases. What Can You Do with SQL Retrieve data from a database. Filter and sort data from a database. Perform computations on database data. Insert records into a database. Update existing records in a database. Delete records from a database. Create new databases. Read more 10 May 2022 Kateryna Koidan The Complete Guide to the SQL WHERE Clause Learn how to use the SQL WHERE clause to filter rows. In this comprehensive article, we cover comparison operators and the BETWEEN, IN, LIKE, AND, OR, and NOT operators. Filtering output rows is one of the first things you need to learn when starting your SQL journey. In this guide, we’ll see how to use the SQL WHERE clause to filter rows in different scenarios. We’ll cover basic and some more advanced use cases. Read more 28 Apr 2022 Kateryna Koidan How to Update Only the First 10 Rows in SQL Real-world databases require continuous updating. Often, you need to update specific records; you may even want to update only the first row, or the first 10, 100, or 1000 rows. Let’s explore how to update rows for a specified quantity from the top in SQL. What Is the SQL UPDATE? In SQL, an UPDATE statement modifies existing records of a table. You may choose to update entire columns or update rows filtered with a WHERE statement. Read more 15 Feb 2022 Kateryna Koidan How to Keep Unmatched Rows From Two Tables in a SQL JOIN Are you looking to join two tables in SQL without removing unmatched rows? Do you want to keep unmatched rows from one or both tables? In this article, I’ll explain how to keep all the records you want by using outer JOINs, such as LEFT JOIN, RIGHT JOIN, and FULL JOIN. Examples included! The SQL JOIN is a powerful tool that helps you combine data from multiple tables of your database. Read more «« « 1 2 3 … 5 » »»