Case when else when. Learn more about this powerful statement in this article.

Case when else when Learn how to use the SQL `CASE` statement to implement conditional logic efficiently. In this tutorial, you will learn about the SQL CASE statement with the help of examples. You'll do this by selecting from the company table and ordering by salary (since we're interested in the record with the third-highest salary Jan 4, 2020 · The SQL CASE statement allows you to perform IF-THEN-ELSE functionality within an SQL statement. Introduction to SQL CASE expression The CASE expression allows you to add if-else logic to queries, making them more powerful. Oct 3, 2025 · Learn about different ways you can use a CASE statement in the WHERE clause for a T-SQL statement with these several examples. So, once a condition is true, it will stop reading and return the result. Learn more about this powerful statement in this article. If none of the conditions are true, the statement returns the result specified in the ELSE clause. The CASE expression in SQL is a conditional expression, similar to “if…else” statements found in other programming languages. CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE resultN END In this syntax, the CASE statement evaluates each WHEN condition in order, returning the corresponding result when a condition is true. Case statements in SQL are versatile tools used to perform conditional logic on data, offering a clean and easy-to-read way to work with data. Searched CASE Nov 4, 2022 · How to Solve the SQL CASE Statement Challenge In this section, we will look at the step-by-step process involved in solving the challenge. This tutorial shows you how to use the SQL Server CASE expression to add if-else logic to SQL queries with many practical examples. This comprehensive guide aims to take you from beginner to expert working with CASE statements across over 2800 words. When a condition evaluates to TRUE, the evaluation stops and the associated result (after THEN) is returned. Sep 18, 2025 · Transact-SQL reference for the CASE expression. Sep 6, 2014 · I have multiple conditions to meet in a case I would like to Know if I can use > < instead of defining every case In this case when the credit rating is smaller then 3 then, the word "NO TRADE" Mar 31, 2021 · Question: What is an SQL Case? In SQL, the CASE expression works like an "if-then-else" statement within a query. SQL CASE Expression Summary: in this tutorial, you will learn how to use the SQL CASE expression to add if-else logic to the SQL statements. The CASE expression has two forms: Simple CASE expression. If none of the conditions . Step 1: Get the third-highest salary First, you'll need to structure a query to return the third-highest salary. Example Get your own SQL Server SELECT OrderID, Quantity, CASE WHEN Quantity > 30 THEN 'The quantity is greater than 30' WHEN Quantity = 30 THEN 'The quantity is 30' ELSE 'The quantity is under 30' END FROM OrderDetails; Try it Yourself » The SQL CASE statement is used to check conditions and perform tasks on each row while selecting data. If no conditions are true, it returns the value in the ELSE clause. Dec 27, 2024 · The SQL CASE statement allows you to perform conditional logic in SQL queries without difficult nested statements. Oct 7, 2025 · Master SQL CASE WHEN with multiple conditions in MySQL, PostgreSQL, SQL Server & Oracle. CASE evaluates a list of conditions to return specific results. Explore its syntax, use cases, best practices, and performance considerations. In the more general form, a series of conditions are evaluated in sequence. It evaluates given conditions and returns specific values based on those conditions. It allows us to perform conditional logic in our SQL queries, where you can change the data that is returned based on specific conditions. Master the Case statement in SQL Server the quick way with this detailed guide which walks you through several detailed examples. Well beyond the basics, we will dig into advanced usage, […] Jun 28, 2023 · Simple Case Syntax and Examples When working with SQL case statements, it’s essential to understand the basic syntax and how to construct simple examples. In this section, several examples of simple case syntax will be demonstrated, assisting in Contents [hide] 1 Case Statement Quick Guide 2 Select Case Format 3 Using the Colon Operator 3. Learn syntax, examples, and tips for interviews. The SQL CASE Expression The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). For example, CASE can categorize data or apply calculations to certain groups of values. Mastering CASE is critical for any serious SQL developer. 1 Code Between Case Statements 4 Case Else 5 Using Select Case with Numbers 6 Select Case Is 7 Select Case Multiple Values 8 Comparing Upper and Lower Case 9 Related Articles 10 What’s Next? Reference Function and stored procedure reference Conditional expression CASE Categories: Conditional expression functions CASE Works like a cascading “if-then-else” statement. boy xcvqvn wbqpxd aos huqyr kbqfnd bgxf ykztgnlk ufndej kyd qxl mulsk jqpljz onbo rcar