1.我们在用SQL2000数据库经常会遇见忘记sa密码，需要修改sa密码，但是有时候修改sa密码时会提示 错误2812：未能找到储存过程’sp_passwoed’
2.遇到这种情况的解决方法是：打开开始菜单，找到SQL Server的程序组，选择运行程序组中的“查询分析器”，打开.
3.打开“查询分析器”后会有一个登录窗口，因为sa密码不能修改，所以在连接使用的地方选择第一项“windows身份验证”。如果操作系统中有多个SQL Server实例，请在上面SQL Server（S）项中，选择指定示例名。最后点确定，进入查询分析器.
4.在打开的窗口中把以下执行语句内容，全部复制到打开的查询分析新窗体中.
create procedure sp_password
@old sysname = NULL, -- the old (current) password
@new sysname, -- the new password
@loginame sysname = NULL -- user to change password on
as
-- SETUP RUNTIME OPTIONS / DECLARE VARIABLES --
set nocount on
declare @self int
select @self = CASE WHEN @loginame is null THEN 1 ELSE 2 END
-- RESOLVE LOGIN NAME
if @loginame is null
select @loginame = suser_sname()
-- CHECK PERMISSIONS (SecurityAdmin per Richard Waymire) --
IF (not is_srvrolemember('securityadmin') = 1)
AND not @self = 1
begin
dbcc auditevent (107, @self, 0, @loginame, NULL, NULL, NULL)
raiserror(15210,-1,-1)
return (1)
end
ELSE
begin
dbcc auditevent (107, @self, 1, @loginame, NULL, NULL, NULL)
end
-- DISALLOW USER TRANSACTION --
set implicit_transactions off
IF (@@trancount > 0)
begin
raiserror(15002,-1,-1,'sp_password')
return (1)
end
-- RESOLVE LOGIN NAME (disallows nt names)
if not exists (select * from master.dbo.syslogins where
loginname = @loginame and isntname = 0)
begin
raiserror(15007,-1,-1,@loginame)
return (1)
end
-- IF non-SYSADMIN ATTEMPTING CHANGE TO SYSADMIN, REQUIRE PASSWORD (218078) --
if (@self <> 1 AND is_srvrolemember('sysadmin') = 0 AND exists
(SELECT * FROM master.dbo.syslogins WHERE loginname = @loginame and isntname = 0
AND sysadmin = 1) )
SELECT @self = 1
-- CHECK OLD PASSWORD IF NEEDED --
if (@self = 1 or @old is not null)
if not exists (select * from master.dbo.sysxlogins
where srvid IS NULL and
name = @loginame and
( (@old is null and password is null) or
(pwdcompare(@old, password, (CASE WHEN xstatus&2048 = 2048 THEN 1 ELSE 0 END)) = 1) ) )
begin
raiserror(15211,-1,-1)
return (1)
end
-- CHANGE THE PASSWORD --
update master.dbo.sysxlogins
set password = convert(varbinary(256), pwdencrypt(@new)), xdate2 = getdate(), xstatus = xstatus & (~2048)
where name = @loginame and srvid IS NULL
-- UPDATE PROTECTION TIMESTAMP FOR MASTER DB, TO INDICATE SYSLOGINS CHANGE --
exec('use master grant all to null')
-- FINALIZATION: RETURN SUCCESS/FAILURE --
if @@error <> 0
return (1)
raiserror(15478,-1,-1)
return (0) -- sp_password
5.复制完成后，点执行按钮（即下图绿色三角按钮），或者键盘上按F5执行.
6.运行后，下方出现提示消息：命令已成功完成。这样就可以正常的修改SQL Server用户sa的密码了。
