c# 代碼:
SqlCommand mycom = usercommon.createcommand();
mycom.CommandText = "ModifyUserPwd";
SqlParameter[] parm = {
new SqlParameter("@username", SqlDbType.VarChar, 50),
new SqlParameter("@userpwd", SqlDbType.VarChar, 50),
new SqlParameter("@newpwd", SqlDbType.VarChar, 50),
new SqlParameter("@returnvalue",SqlDbType.Int)
};
parm[0].Value=username;
parm[1].Value=oldpwd;
parm[2].Value=newpwd;
parm[3].Direction = ParameterDirection.ReturnValue;'返回數(shù)據(jù)庫中return的值(即本代碼中的1或0)
usercommon.AttachParameters(mycom,parm);
mycom.ExecuteNonQuery();
int i =(Int32) mycom.Parameters["@returnvalue"].Value;
usercommon.CloseConn();
return i;
存儲過程
alter proc ModifyUserPwd
(
@username varchar(50),
@userpwd varchar(50),
@newpwd varchar(50)
)
as
declare @pwd varchar(50)
select @pwd=userpwd from users
if(@pwd=@userpwd)
begin
update users set userpwd=@newpwd where username=@username
return 1
end
else
return 0
go
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