在sql数据库中调用存储过程可以查询出结果,在程序中调用存储过程确查不出数据?这是什么原因?
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- 马欢欢 2014-10-15 04:52关注
use test1 go IF EXISTS (SELECT * FROM sys.objects WHERE object_id = Object_id(N'[t_sp_test111]') AND Objectproperty(object_id, N'IsUserTable') = 1) drop table t_sp_test111 go create table t_sp_test111 (id int) go IF EXISTS (SELECT * FROM sys.objects WHERE object_id = Object_id(N'[sp_test111]') AND Objectproperty(object_id, N'IsProcedure') = 1) drop procedure sp_test111 go create procedure sp_test111 ( @i int, @c varchar(100) output) as insert into t_sp_test111 values (100) set @i = 1 print @i set @c = '@c value' insert into t_sp_test111 values (200) --RAISERROR('testest 错误错误了!!!',16,-1) insert into t_sp_test111 values (900) set @c = '@c value2' go
sp_test111有2个参数,第一个是输入参数,第二个是output。
如果是用java程序调用:public void testProceRaiseError(Connection conn) throws Exception{ java.sql.CallableStatement psc = conn.prepareCall("{ call sp_test111 (?,?)}");
// CallableStatement psc = conn.prepareCall(" exec sp_test111 ?,? "); -- is ok too
psc.setInt(1,123);
psc.registerOutParameter(2, Types.VARCHAR);psc.execute(); String cOutStr = psc.getString(2); System.out.println(cOutStr); }
注意我会写上psc.registerOutParameter(2, Types.VARCHAR);
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