在MySQL中是否在存储过程中实现？
要实现if-else，语法如下-
if yourCondition then
yourStatement1;
else
yourStatement2;
end if ;要了解存储过程中if-else的上述概念，让我们创建一个存储过程-
mysql> delimiter //
mysql> create procedure If_else_stored_demo(value int)
begin
if value > 1000 then
select "your value is greater than 1000";
else
select "your value is less than or equal to 1000";
end if ;
end
//
mysql> delimiter ;现在您可以使用调用命令来调用存储过程-
mysql> call If_else_stored_demo(500);
这将产生以下输出-
+------------------------------------------+ | your value is less than or equal to 1000 | +------------------------------------------+ | your value is less than or equal to 1000 | +------------------------------------------+ 1 row in set (0.00 sec)
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