The IF ELSE statement controls the flow of execution in SQL Server. It can be used in stored-procedures, functions, triggers, etc. to execute the SQL statements based on the specified conditions. Syntax: Copy IF
this statement is equivalent to nested IF...THEN...ELSE...IF...THEN statements, but only one END IF is needed. The following example uses an IF...THEN...ELSIF...ELSE statement to count the number of employees by compensation, in steps of $25,000. ...
It executes the ELSE statement and prints the message for it. In this case, we have two SQL IF statements. The second IF statement evaluates to false, therefore, it executes corresponding ELSE statement 它执行ELSE语句并为其打印消息。 在这种情况下,我们有两个SQL IF语句。 第二条IF语句的计算结...
在使用IF和ELSE语句时,要注意SQL语句的可读性和维护性。 参考链接 MySQL IF Statement MySQL Stored Procedures 通过上述示例和解释,你应该能够理解MySQL中IF和ELSE语句的基本用法和应用场景。如果你在实际应用中遇到问题,可以参考上述链接中的官方文档来获取更多帮助。
First, IF statement condition is TRUE. It prints the message inside the IF statement block Second, IF statement condition is FALSE, it does not print the message inside IF statement block It executes the ELSE statement and prints the message for it. In this case, we have two SQL IF state...
Use the IF statement for control flow, which is unlike theIIf (MDX)function and theCASE Statement (MDX)that can only be used to return values or objects. Examples In the following example, the scope is restricted to the Country level of the Customers Geography hierarchy in the Customers dime...
2) PL/pgSQL if-then-else statement The if...then...else statement executes the statements in the if branch if the condition evaluates to true; otherwise, it executes the statements in the else branch. Here’s the syntax of the if...then...else statement: if condition then statements;...
SQL 过程中的 IF 语句 可使用 IF 语句来根据条件满足状态而有条件进入某个逻辑。IF 语句在逻辑上等价于带有搜索式 CASE 语句 WHEN 子句的 CASE 语句。 IF 语句支持使用可选 ELSE IF 子句和缺省 ELSE 子句。END IF 子句是指示语句结尾所必需的。 以下是包含 IF 语句的过程的示例:...
This SQL Server tutorial explains how to use the IF...ELSE statement in SQL Server (Transact-SQL) with syntax and examples. In SQL Server, the IF...ELSE statement is used to execute code when a condition is TRUE, or execute different code if the conditio
In SQL Server there is anIF…ELSE control flow statement. However, it cannot be used inside a SELECT statement. The closest of IF…THEN operation which can be used in SELECT statements is CASE expression or the IIF function. Let us see how to use CASE and IIF using an example. ...