Contents
What is a SELECT CASE statement?
A Select Case statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each select case.
What is a case when statement in SQL?
CASE is the special scalar expression or conditional statement in the SQL language which returns a single value based on the evaluation of a statement. It can be used in Select, Where and Order By clause. A Case expression is mostly used in SQL stored procedures or as a formula for a particular column, which optimizes the SQL statements.
What case expressions in SQL are?
SQL CASE Introduction to SQL CASE expression. The SQL CASE expression allows you to evaluate a list of conditions and returns one of the possible results. Simple CASE expression. CASE expression WHEN when_expression_1 THEN result_1 WHEN when_expression_2 THEN result_2 WHEN when_expression_3 THEN result_3 Searched CASE expression.
What is case in Oracle SQL?
PLSQL CASE statement has the functionality of an IF-THEN-ELSE statement.
What is a case statement in SQL Server?
Understanding the SQL Server CASE statement Creating dummy data. The script above has created a dummy database called ShowRoom with one Table in it called Cars. SQL Server CASE statement syntax. CASE statement examples. Multiple conditions in CASE statement. Using GROUP BY with SQL Server CASE statement. Conclusion. Other great articles from Ben.
What is a case function in SQL?
Case Function. Case function execute a sequence of statement depending upon condition. CASE function in SQL operates by comparing the first expression to the expression in each WHEN clause for equivalency. Expressions which are equivalent in Case function, expression in the THEN clause will be executed.