我們建立了Alwayson后，輔助副本下的數據庫是沒有相應的賬號的，怎么樣進行賬號的同步呢？怎么在不知道密碼的情況下，進行賬號的同步設置。

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我們可以通過SP--sp_help_revlogin 來實現，此存儲過程在主副本上創建了，在執行的時候直接數據你需要同步的賬號就會生成創建的SQL命令。

我們將這個SQL 命令 Copy至輔助副本上去執行，然后輔助副本上關于這個賬號就生效了。

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SP-- sp_help_revlogin的完整代碼如下（需先創建sp_hexadecimal，代碼隨后）

USE [master]
GO
/****** Object:  StoredProcedure [dbo].[sp_help_revlogin]    Script Date: 2016/12/9 16:21:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
Create 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 sysnameIF (@login_name IS NULL)DECLARE login_curs CURSOR FORSELECT 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 lON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name <> 'sa'
ELSEDECLARE login_curs CURSOR FORSELECT 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 lON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name = @login_name
OPEN login_cursFETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin
IF (@@fetch_status = -1)
BEGINPRINT 'No login(s) found.'CLOSE login_cursDEALLOCATE login_cursRETURN -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)
BEGINIF (@@fetch_status <> -2)BEGINPRINT ''SET @tmpstr = '-- Login: ' + @namePRINT @tmpstrIF (@type IN ( 'G', 'U'))BEGIN -- NT authenticated account/groupSET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' FROM WINDOWS WITH DEFAULT_DATABASE = [' + @defaultdb + ']'ENDELSE BEGIN -- SQL Server authentication-- obtain password and sidSET @PWD_varbinary = CAST( LOGINPROPERTY( @name, 'PasswordHash' ) AS varbinary (256) )EXEC sp_hexadecimal @PWD_varbinary, @PWD_string OUTEXEC sp_hexadecimal @SID_varbinary,@SID_string OUT-- obtain password policy stateSELECT @is_policy_checked = CASE is_policy_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @nameSELECT @is_expiration_checked = CASE is_expiration_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @nameSET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' WITH PASSWORD = ' + @PWD_string + ' HASHED, SID = ' + @SID_string + ', DEFAULT_DATABASE = [' + @defaultdb + ']'IF ( @is_policy_checked IS NOT NULL )BEGINSET @tmpstr = @tmpstr + ', CHECK_POLICY = ' + @is_policy_checkedENDIF ( @is_expiration_checked IS NOT NULL )BEGINSET @tmpstr = @tmpstr + ', CHECK_EXPIRATION = ' + @is_expiration_checkedENDENDIF (@denylogin = 1)BEGIN -- login is denied accessSET @tmpstr = @tmpstr + '; DENY CONNECT SQL TO ' + QUOTENAME( @name )ENDELSE IF (@hasaccess = 0)BEGIN -- login exists but does not have accessSET @tmpstr = @tmpstr + '; REVOKE CONNECT SQL TO ' + QUOTENAME( @name )ENDIF (@is_disabled = 1)BEGIN -- login is disabledSET @tmpstr = @tmpstr + '; ALTER LOGIN ' + QUOTENAME( @name ) + ' DISABLE'ENDPRINT @tmpstrENDFETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denyloginEND
CLOSE login_curs
DEALLOCATE login_curs
RETURN 0

　　

注意其上的SP在代碼中會包含sp --sp_hexadecimal，需要先創建

USE [master]
GO/****** Object:  StoredProcedure [dbo].[sp_hexadecimal]    Script Date: 2016/12/9 16:11:25 ******/
SET ANSI_NULLS ON
GOSET QUOTED_IDENTIFIER ON
GOCREATE PROCEDURE [dbo].[sp_hexadecimal]@binvalue varbinary(256),@hexvalue varchar (514) OUTPUT
AS
DECLARE @charvalue varchar (514)
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)
BEGINDECLARE @tempint intDECLARE @firstint intDECLARE @secondint intSELECT @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
ENDSELECT @hexvalue = @charvalueGO

　　

轉載于:https://www.cnblogs.com/xuliuzai/p/10895193.html

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