Why ?
In a
situation that you may need to migrate exact user with it is mapping and
password between server A to server B in MS SQL, here I refer back to the below
MS article to run a script to migrate this by generating a script with a has
value of password and it is characteristics and run the script and the output
will be executed in the server B.
How ?
Below
are steps I followed to achieve this ,:
1- In server A , first run the below script in
Master Database to create the procedure only:
USE [master]
GO
IF OBJECT_ID ('sp_hexadecimal') IS NOT NULL
DROP PROCEDURE sp_hexadecimal
GO
CREATE PROCEDURE [dbo].[sp_hexadecimal]
(
@binvalue varbinary(256),
@hexvalue varchar (514) OUTPUT
)
AS
BEGIN
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)
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
END
go
IF OBJECT_ID ('sp_help_revlogin') IS NOT NULL
DROP PROCEDURE sp_help_revlogin
GO
CREATE PROCEDURE
[dbo].[sp_help_revlogin]
(
@login_name sysname = NULL
)
AS
BEGIN
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 @Prefix VARCHAR(255)
DECLARE @defaultdb SYSNAME
DECLARE @defaultlanguage SYSNAME
DECLARE @tmpstrRole VARCHAR (1024)
IF (@login_name IS NULL)
BEGIN
DECLARE login_curs CURSOR
FOR
SELECT p.sid, p.name, p.type,
p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin,
p.default_language_name
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'
ORDER BY p.name
END
ELSE
DECLARE login_curs CURSOR
FOR
SELECT p.sid, p.name, p.type,
p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin,
p.default_language_name
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
ORDER BY p.name
OPEN login_curs
FETCH NEXT FROM login_curs INTO
@SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin,
@defaultlanguage
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
SET @tmpstr='IF NOT EXISTS
(SELECT * FROM sys.server_principals WHERE name = N'''+@name+''')
BEGIN'
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
-- obtain password and sid
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 + ']' + ', DEFAULT_LANGUAGE
= [' + @defaultlanguage + ']'
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
SET @Prefix = '
EXEC master.dbo.sp_addsrvrolemember
@loginame='''
SET @tmpstrRole=''
SELECT @tmpstrRole = @tmpstrRole
+ CASE WHEN sysadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''sysadmin''' ELSE ''
END
+ CASE WHEN securityadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''securityadmin''' ELSE ''
END
+ CASE WHEN serveradmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''serveradmin''' ELSE ''
END
+ CASE WHEN setupadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''setupadmin''' ELSE ''
END
+ CASE WHEN processadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''processadmin''' ELSE ''
END
+ CASE WHEN diskadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''diskadmin''' ELSE ''
END
+ CASE WHEN dbcreator = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''dbcreator''' ELSE ''
END
+ CASE WHEN bulkadmin = 1 THEN @Prefix + [LoginName] + ''',
@rolename=''bulkadmin''' ELSE ''
END
FROM (
SELECT
CONVERT(VARCHAR(100),SUSER_SNAME(sid)) AS [LoginName],
sysadmin,
securityadmin,
serveradmin,
setupadmin,
processadmin,
diskadmin,
dbcreator,
bulkadmin
FROM sys.syslogins
WHERE ( sysadmin<>0
OR securityadmin<>0
OR serveradmin<>0
OR setupadmin <>0
OR processadmin <>0
OR diskadmin<>0
OR dbcreator<>0
OR bulkadmin<>0
)
AND name=@name
) L
PRINT @tmpstr
PRINT @tmpstrRole
PRINT 'END'
END
FETCH NEXT FROM login_curs INTO
@SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin,
@defaultlanguage
END
CLOSE login_curs
DEALLOCATE login_curs
RETURN 0
END
2-
Execute this in Server A to get the output:
EXEC sp_help_revlogin
3- Execute the output of point 2 in Server B (below
is sample for one user).
-- Login: NT
Service\MSSQLSERVER
IF NOT EXISTS (SELECT *
FROM sys.server_principals WHERE name = N'NT Service\MSSQLSERVER')
BEGIN
CREATE LOGIN [NT
Service\MSSQLSERVER] FROM WINDOWS WITH DEFAULT_DATABASE = [master]
EXEC master.dbo.sp_addsrvrolemember
@loginame='NT Service\MSSQLSERVER', @rolename='sysadmin'
END
Reference is : https://learn.microsoft.com/en-US/troubleshoot/sql/security/transfer-logins-passwords-between-instances
