Sybase 存储过程的建立和执行sql
--返回值为int的存储过程 create proc testReturn @tname varchar(12) , @tid int output as begin set @tid = (select testid from Mytest where testname=@tname) return end --返回值为varchar的存储过程 create proc testReturnT @tid int , @tname varchar(12) output as begin set @tname = (select testname from Mytest where testid=@tid) return end --能够正确执行 declare @tid int exec testReturn 'testname', @tid output select @tid --本意是想直接输出输出参数 declare @tname varchar(12) exec @tname = testReturnT 3,@tname output select @tname --异常:Implicit conversion from datatype 'INT' to 'VARCHAR' is not allowed. Use the CONVERT function to run this query. --正确的执行方法 declare @tname varchar(12) declare @tid int exec @tid = testReturnT 3,@tname output select @tid select @tname --正确执行 declare @tname varchar(12) exec testReturnT 3,@tname output select @tname --注意:Sybase存储过程执行以后 返回值的存储过程成功与否的Int值
Oracle存储过程的建立和执行this
--建立 create PROCEDURE testReturn (tid in number , tname out NOCOPY varchar2 ) as begin select testname into tname from testtable where testid =tid; end testReturn;
SQL存储过程的建立和执行spa
--建立 CREATE PROCEDURE procReturn @tid int , @tname varchar(12) output AS select @tname = testname from test1 where testid=@tid RETURN --执行 exec procReturn 2,@tname output