SQL根据变量的值在存储过程中执行请求

Question

如何根据存储过程中变量的值执行SQL语句？

if(@Quantity <= @MaxAuto) then Exec(@ReqSQL) else do nothing;

Answer 1

你几乎就在那里......

if(@Quantity <= @MaxAuto) 
BEGIN
  Exec StoredProcName @param1, @Param2, etc, etc
END

Answer 2

DECLARE @ReqSQL VARCHAR(MAX)
SET @ReqSQL = 'SELECT * FROM TABLE'

IF(@Quantity <= @MaxAuto) 
BEGIN 
 EXEC (@ReqSQL) 
END