我有一个存储过程,我必须使用sp_executesql
. 由于我的 SQL Server 实例的性能问题,我想使用sp_executesql
而不是。exec
这是我的代码:
ALTER PROCEDURE [dbo].[sp_TestSp1]
@Type1 VARCHAR(256)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @sqlCommand varchar(2000) = ''
DECLARE @columnList varchar(1000) = ''
DECLARE @dynamicSql varchar(1000) = ''
IF (@Type1 IS NOT NULL )
BEGIN
SET @dynamicSql = @dynamicSql + 'AND tbl1.DTypeID IN ( '+ @Type1+ ' )'
END
SET @columnList = 'SELECT DISTINCT tbl2.ID, Name AS PName '
SET @sqlCommand = @columnList
+ ' FROM tbl1 '
+ ' INNER JOIN tbl3 ON tbl1.NID= tbl3.NID '
+ ' INNER JOIN tbl4 ON tbl3.DID = tbl4.DID '
+ ' WHERE TT=1 AND IsActive=1 AND tbl1.DTypeID IN (1,3,5)'
+ @dynamicSql
EXEC (@sqlCommand)