如何取存储过程的返回值？

[hijoy]

比如说判断逻辑设备kd是否存在，如果存在就删除。
sp_helpdevice kd
怎么获得这个返回值？

[pengdali]

你是要做备份程序吗？？

[pengdali]

create table #temp (a1 char(100),a2 char(100),a3 char(100),a4 char(100),a5 char(100),aa char(100))
insert into #temp exec sp_helpdevice
select * from #temp
drop table #temp

[pengdali]

create PROCEDURE GY_DBBak
@bakequip int, -- 备份设备：磁盘&磁带
@bakpath varchar(50), -- 带全路径的备份文件名
@baktype int, -- 完全备份&增量备份
@baklog int, -- ‘0’备份日志
@bakdb int, -- ‘0’备份数据库
@kind varchar(7), --备份还是恢复

@retmsg varchar(20) output --返回信息
AS


DECLARE @DevName_data varchar(50)
DECLARE @DevName_log varchar(50)
declare @db_path varchar(100)
declare @log_path varchar(100)

DECLARE @RC INT

SELECT @db_path = @bakpath + '.dat'
SELECT @log_path = @bakpath + 'log.dat'
SELECT @RC=0

DBCC CHECKDB(Northwind)
/***********************************************************
** CREATE BACKUP AND RESTORE DEVICES
************************************************************/
IF @RC=0
BEGIN

EXEC sp_addumpdevice 'disk', @DevName_data,@db_path

exec sp_addumpdevice 'disk', @DevName_log,@log_path
select @rc=@@error
IF @RC<>0
begin
EXEC SP_DropDevice @Devname_data
exec sp_dropdevice @devname_log
SELECT @RC=-1000
return @rc
end
END

IF @kind='backup'
BEGIN
IF @bakequip=0
BEGIN
IF @baktype=0
BEGIN
IF @bakdb=0
BEGIN
BACKUP DATABASE Northwind TO DISK=@Devname_data
WITH INIT
END
IF @baklog=0
BEGIN
BACKUP LOG Northwind WITH NO_LOG
BACKUP LOG Northwind TO DISK=@DevName_log
WITH INIT,NO_TRUNCATE
END
END
ELSE BEGIN
IF @bakdb=0
BEGIN
BACKUP DATABASE Northwind TO DISK=@DevName_data
WITH NOINIT
END
IF @baklog=0
BEGIN
BACKUP LOG Northwind WITH NO_LOG
BACKUP LOG Northwind TO DISK=@DevName_log
WITH NOINIT,NO_TRUNCATE
END
END
END
SELECT @retmsg='数据库备份成功！'
END

IF @kind='restore'
BEGIN
RESTORE DATABASE Northwind FROM DISK= @DevName_data WITH REPLACE
SELECT @retmsg='恢复数据库成功！'
END

RETURN 0

[愉快的登山者]

create table #temp (kd char(1))
insert into #temp exec sp_helpdevice kd
select * from #temp

[boy2002]

在存储过程定义参数时定义参数为output,然后调用完存储过程后，就可以取
参数定义为output的参数的值