Sql Script If Statement

The CASE statement acts as a logical IF-THEN-ELSE conditional statement. We can use it to perform conditional branching within the SELECT statement across various SQL databases, including SQL Server, MySQL, and PostgreSQL. Within SQL SELECT, we can use the WHEN-ELSE statement instead of the traditional IF-ELSE. It evaluates a condition and

Summary in this tutorial, you will learn SQL Server IFELSE statement to control the flow of program.. The IFELSE statement is a control-flow statement that allows you to execute or skip a statement block based on a specified condition.. The IF statement. The following illustrates the syntax of the IF statement. IF boolean_expression BEGIN statement_block END Code language SQL

Applies to SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System PDW SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric SQL database in Microsoft Fabric Imposes conditions on the execution of a Transact-SQL statement. The Transact-SQL statement that follows an IF keyword and its condition is executed if the condition

The IF statement in T-SQL works very much like the IF statement in most modern programming languages. It allows a line of code or a block of code to run only if certain conditions are met. If the conditions are not met, the code is skipped, and execution moves to later lines of code. SQL IF Statement Basics. The IF statement is very simple to use.

Understanding SQL Server IF statements. SQL Server IF statement provides a way to execute code blocks based on specific conditions. This control-of-flow statement allows you to handle different scenarios and make decisions within your SQL Server scripts or stored procedures. The basic syntax of the SQL Server IF statement is simple

How if and else works. If the condition evaluates to True, then T-SQL statements followed by IF condition in SQL server will be executed. If the condition evaluates to False, then T-SQL statements followed by ELSE keyword will be executed. Once, either IF T-SQL statements or ELSE T-SQL statement is executed, then other unconditional T-SQL statements continues execution.

The IF statement evaluates the expression and executes the SQL statements only if the expression returns TRUE. The basic syntax of the IF statement in SQL Server is as follows Syntax. IF condition BEGIN -- code to be executed if the condition is true END The condition in the IF statement is any expression that evaluates to either true or false

Conclusion. The IFELSE statement in SQL Server is a straightforward yet powerful way to incorporate conditional logic into your T-SQL scripts. Whether you're categorizing data, controlling the flow of execution, or optimizing queries, understanding this construct can significantly enhance your SQL development skills.

From SQL Server 2012 you can use the IIF function for this.. SELECT IIFObsolete 'N' OR InStock 'Y', 1, 0 AS Salable, FROM Product This is effectively just a shorthand albeit not standard SQL way of writing CASE.. I prefer the conciseness when compared with the expanded CASE version.. Both IIF and CASE resolve as expressions within a SQL statement and can only be used in well

To include multiple statements, enclosed them between BEGIN and END keywords. The ELSE block is optional. If the Boolean expression with the IF statement returns FALSE, then the control is passed to the ELSE statement. If the condition in the IF block returns TRUE, then the SQL statement block after the IF statement is executed.