Can we use case in where condition in SQL?

Asked by: Lucian Veselenko

asked in category: General Last Updated: 23rd April, 2020

Can we use case in where condition in SQL?

According to Ms SQL Docs, a CASE statement can be used throughout the SELECT statement. CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING.

Similarly one may ask, how does case work in SQL?

The SQL CASE StatementThe CASE statement goes through conditions and returns a value when the first condition is met (like an IF-THEN-ELSE statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause.

Also, how do I write if else in SQL? The IF ELSE statementWhen the condition in the IF clause evaluates to FALSE and you want to execute another statement block, you can use the ELSE clause. Each IF statement has a condition. If the condition evaluates to TRUE then the statement block in the IF clause is executed.

Moreover, can we write select statement in case?

CASE statement in SQL. The case statement in SQL returns a value on a specified condition. We can use a Case statement in select queries along with Where, Order By and Group By clause. It can be used in Insert statement as well.

What is a case statement?

A case statement is a concise document that clearly explains what need your organization seeks to meet, how you have and plan to meet that need, and what you could achieve with additional resources.

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