存储过程之print语句
create proc proc_AddUsers
(
@Users_Name varchar(20),
@Password varchar(16),
@Description varchar(50),
@Users_Role int
)
as
if not exists(select Users_Name from Users where Users_Name=@Users_Name)
begin
insert into Users values (@Users_Name,@Password,@Description,@Users_Role)
end
else
print 'UserName have existed '
go
============================================================
如上一个存储过程，如何用C#来接收“print”返回的字符串？

[解决办法]
换成Select吧，或者使用输出参数。
[解决办法]
raiseerror（） 具体用法查下联机丛书
[解决办法]
create proc proc_AddUsers
(
@Users_Name varchar(20),
@Password varchar(16),
@Description varchar(50),
@Users_Role int,
@backinfo varchar(20) output
)
as
if not exists(select Users_Name from Users where Users_Name=@Users_Name)
begin
insert into Users values (@Users_Name,@Password,@Description,@Users_Role)
end
else
set @backinfo= 'UserName have existed '
go
这样就可以了