sql - 存储过程中的条件

Question

我有一个执行 2 次更新的存储过程，但我只想在参数@active等于时进行第一次更新'Y'。

alter procedure sp_updateThis
@something varchar(5),
@active char(1)
as begin
-- check to see if active and do the update
update myTable set this=@something

-- run this one regardless
update yourTable set that=@something

Answer 1

尝试用这个改变最后一行：

if (@active = 'Y')
begin
    update yourTable set that=@something
end

Answer 2

alter procedure sp_updateThis
@something varchar(5),
@active char(1)
as begin
-- check to see if active and do the update
if(@active = 'Y')
Begin
update myTable set this=@something
End

-- run this one regardless
update yourTable set that=@something

Answer 3

如果您真的想更新表中的每一行：

update myTable set this=@something where @active = 'Y';

否则你可能想要额外的条款......

Answer 4

你可以像这样创建一个过程： create procedure sp_updateThis @something varchar(5), @active char(1) AS Begin

if @active ='y' begin update yourTable set that=@something end else update myTable set this=@something update yourTable set that=@something

结束