Tuesday, January 13, 2009

SQL Check DB

/*
This is the routine I use for running check DB. It simply loops through the master miles and runs check DB. There is an optional parameter to suppress info messages.
*/

USE [master]
GO

DECLARE @tDatabases TABLE
( databaseId int
);

INSERT INTO @tDatabases ( databaseId )
SELECT DISTINCT s_mf.database_id
FROM sys.databases s_mf
WHERE s_mf.state = 0 -- ONLINE
AND has_dbaccess(db_name(s_mf.database_id)) = 1 -- Only look at databases to which we have access
AND NOT [NAME] IN ('tempdb', 'master', 'model', 'msdb' )--eliminate temp db
;

DECLARE cursor_usage CURSOR FOR SELECT databaseId FROM @tDatabases;

DECLARE @dbId INT;

OPEN cursor_usage;
FETCH NEXT FROM cursor_usage INTO @dbId;

WHILE @@FETCH_STATUS = 0
BEGIN
PRINT db_name(@dbId);
DECLARE @dbname nvarchar(50)
SET @dbname = db_name(@dbId);
DBCC CHECKDB (@dbName);

FETCH NEXT FROM cursor_usage INTO @dbId;
END;

CLOSE cursor_usage;
DEALLOCATE cursor_usage;

Monday, January 12, 2009

SQL User Backup Scipt Update and Fixed

/*
Fixed Backup script
The root path was not set causing the directories to not be set correctly.

Again the master.dbo.xp_create_subdir is only available in 2005 and 2008

*/


USE [master]
GO

DECLARE @rootpath NVARCHAR(100);
set @rootPath = N'\[Your backup locationand a]\';

DECLARE @tDatabases TABLE
( databaseId int
);

INSERT INTO @tDatabases ( databaseId )
SELECT DISTINCT
s_mf.database_id
from sys.master_files s_mf
where s_mf.state = 0 -- ONLINE
AND has_dbaccess(db_name(s_mf.database_id)) = 1 -- Only look at databases to which we have access
AND NOT db_name(s_mf.database_id) in ('tempdb', 'master', 'msdb', 'model'); --eliminate temp db


DECLARE cursor_usage CURSOR FOR SELECT databaseId FROM @tDatabases;

DECLARE @dbId int;
OPEN cursor_usage;

FETCH NEXT FROM cursor_usage INTO @dbId;

WHILE @@FETCH_STATUS = 0
BEGIN
PRINT db_name(@dbId);
DECLARE @Filepath NVARCHAR(500);
declare @dbname nvarchar(50)
set @dbname = db_name(@dbId);

SET @FilePath = @RootPath + @dbName;
PRINT @FilePath

EXECUTE master.dbo.xp_create_subdir @filepath;

declare @fileName nvarchar(128)
declare @fullPath nvarchar(255)

--set the date format yyyymmddhhmm for the file name
declare @date nvarchar(10)
declare @hour nvarchar(4)
declare @minute nvarchar(4)

--ensure hour is 2 digit
set @hour = CAST(datepart(hh,getdate()) AS nvarchar(2))
if len(@hour) = 1
set @hour = '0' + CAST(datepart(hh,getdate()) AS nvarchar(2))

--ensure hour is 2 digit
set @minute = CAST(DATEPART(mi, GetDate())AS nvarchar(2))

if len(@minute) = 1
set @minute = '0' + CAST(DATEPART(mi, GetDate())AS nvarchar(2))

--set the filename
select @filename = @dbName + N'_backup_' + CONVERT( nvarchar(30), GetDate(), 112 ) + @hour + @minute + N'.bak';
select @fullPath = @filePath + '\' + @fileName
print @fileName;

BACKUP DATABASE @dbname TO DISK = @fullpath WITH NOFORMAT, NOINIT, NAME = @fileName, SKIP, REWIND, NOUNLOAD, STATS = 5;


--run the verify
declare @backupSetId as int
select @backupSetId = position from msdb.dbo.backupset where database_name=@dbname and backup_set_id=(select max(backup_set_id) from msdb.dbo.backupset where database_name=@dbname )

if @backupSetId is null
begin
declare @errMsg nvarchar(128)
select @errMsg = N'Verify failed. Backup information for database ' + @dbname + N' not found.'
raiserror(@errMsg, 16, 1);
end

RESTORE VERIFYONLY FROM DISK = @fullpath WITH FILE = @backupSetId, NOUNLOAD, NOREWIND

FETCH NEXT FROM cursor_usage INTO @dbId;
END;

CLOSE cursor_usage;
DEALLOCATE cursor_usage;

Thursday, January 8, 2009

SSIS Transfer Database task

Just a few notes about the use of the transfer database control task in SSIS 2005.

We had several problems with the logins being corrupted when the database was placed in the new instances. It appears that the task attempts to match the users to the instances users as one of its' steps. If it cannot find the user names in the new instance it corrupts the dbo users and schema.

The simple solution is to make sure that all users exist in the new instance. The transfer database task will then match the DBID of the instance users. This saves you from having to run sp_change_users_login to match the DBID from the new database to the instance

Thanks you Sam for this one.