查詢存儲過程所需參數

SELECT 
name, --參數名
xtype,--數據類型
length,--數據長度
isoutparam,--參數類型：入參0/出參1
isnullable--是否容許爲null
FROM syscolumns where ID in    
(SELECT id FROM sysobjects as a  
WHERE OBJECTPROPERTY(id, N'IsProcedure') = 1    
AND id = object_id(N'[dbo].[存儲過程名]'))