sqlserver  登录名迁移

1.在master库中执行生成以下两个sp。

USE master

GO

IF OBJECT_ID ('sp_hexadecimal') IS NOT NULL

DROP PROCEDURE sp_hexadecimal

GO

CREATE PROCEDURE sp_hexadecimal

@binvalue varbinary(256),

@hexvalue varchar(256) OUTPUT

AS

DECLARE @charvalue varchar(256)

DECLARE @i int

DECLARE @length int

DECLARE @hexstring char(16)

SELECT @charvalue = '0x'

SELECT @i = 1

SELECT @length = DATALENGTH (@binvalue)

SELECT @hexstring = '0123456789ABCDEF'

WHILE (@i <= @length)

BEGIN

DECLARE @tempint int

DECLARE @firstint int

DECLARE @secondint int

SELECT @tempint = CONVERT(int, SUBSTRING(@binvalue,@i,1))

SELECT @firstint = FLOOR(@tempint/16)

SELECT @secondint = @tempint - (@firstint*16)

SELECT @charvalue = @charvalue +

SUBSTRING(@hexstring, @firstint+1, 1) +

SUBSTRING(@hexstring, @secondint+1, 1)

SELECT @i = @i + 1

END

SELECT @hexvalue = @charvalue

GO

USE [master]

GO

/****** Object:  StoredProcedure [dbo].[sp_help_revlogin]

Script Date: 07/13/2011 19:07:32 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

--创建存储过程：

alter PROCEDURE [dbo].[sp_help_revlogin]

@login_name sysname = NULL

AS

DECLARE @name sysname

DECLARE @type varchar (1)

DECLARE @hasaccess int

DECLARE @denylogin int

DECLARE @is_disabled int

DECLARE @PWD_varbinary  varbinary (256)

DECLARE @PWD_string  varchar (514)

DECLARE @SID_varbinary varbinary (85)

DECLARE @SID_string varchar (514)

DECLARE @tmpstr  varchar (1024)

DECLARE @is_policy_checked varchar (3)

DECLARE @is_expiration_checked varchar (3)

DECLARE @defaultdb sysname

IF (@login_name IS NULL)

DECLARE login_curs CURSOR FOR

SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin

FROM   sys.server_principals p LEFT JOIN sys.syslogins l   ON ( l.name = p.name )

WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name <> 'sa'

ELSE

DECLARE login_curs CURSOR FOR

SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin

FROM   sys.server_principals p LEFT JOIN sys.syslogins l   ON ( l.name = p.name )

WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name = @login_name

OPEN login_curs

FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin

IF (@@fetch_status = -1)   BEGIN

PRINT 'No login(s) found.'

CLOSE login_curs

DEALLOCATE login_curs

RETURN -1

END

SET @tmpstr = '/* sp_help_revlogin script '

PRINT @tmpstr

SET @tmpstr = '** Generated ' + CONVERT (varchar, GETDATE()) + ' on ' + @@SERVERNAME + ' */'

PRINT @tmpstr

PRINT ''

WHILE (@@fetch_status <> -1)   BEGIN

IF (@@fetch_status <> -2)   BEGIN

PRINT ''

SET @tmpstr = '-- Login: ' + @name

PRINT @tmpstr

IF (@type IN ( 'G', 'U'))  BEGIN -- NT authenticated account/group

SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' FROM WINDOWS WITH DEFAULT_DATABASE = [' + @defaultdb + ']'

END   ELSE BEGIN -- SQL Server authentication

SET @PWD_varbinary = CAST( LOGINPROPERTY( @name, 'PasswordHash' ) AS varbinary (256) )

EXEC sp_hexadecimal @PWD_varbinary, @PWD_string out

EXEC sp_hexadecimal @SID_varbinary,@SID_string out

--obtain password policy state：

SELECT @is_policy_checked = CASE is_policy_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END

FROM sys.sql_logins WHERE name = @name

SELECT @is_expiration_checked = CASE is_expiration_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END

FROM sys.sql_logins WHERE name = @name

SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' WITH PASSWORD = ' + @PWD_string + ' HASHED, SID = ' + @SID_string + ', DEFAULT_DATABASE = [' + @defaultdb + ']'

IF ( @is_policy_checked IS NOT NULL )   BEGIN

SET @tmpstr = @tmpstr + ', CHECK_POLICY = ' + @is_policy_checked

END

IF ( @is_expiration_checked IS NOT NULL )   BEGIN

SET @tmpstr = @tmpstr + ', CHECK_EXPIRATION = ' + @is_expiration_checked

END

END

IF (@denylogin = 1)   BEGIN -- login is denied access

SET @tmpstr = @tmpstr + '; DENY CONNECT SQL TO ' + QUOTENAME( @name )

END   ELSE IF (@hasaccess = 0)   BEGIN -- login exists but does not have access

SET @tmpstr = @tmpstr + '; REVOKE CONNECT SQL TO ' + QUOTENAME( @name )

END

IF (@is_disabled = 1)   BEGIN -- login is disabled

SET @tmpstr = @tmpstr + '; ALTER LOGIN ' + QUOTENAME( @name ) + ' DISABLE'

END

PRINT @tmpstr

END

FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin

END

CLOSE login_curs

DEALLOCATE login_curs

RETURN 0

2. 执行sp_help_revlogin

exec  sp_help_revlogin null 所有登录用户

exec sp_help_revlogin loginname 指定登录用户

孤立用户的解决方案：

EXEC sp_change_users_login 'Update_One', 'UserAccount', 'LoginAccount';

个人理解：

用户的权限是在数据库级别控制的 ，数据库用户和登录名直接是通过sid关联的。

参考链接：

http://database.51cto.com/art/201107/275918.htm

http://support.microsoft.com/kb/246133/zh-cn