Thursday, December 30, 2010
Tuesday, December 28, 2010
Wednesday, December 22, 2010
Thanks To :- http://www.databasejournal.com/features/mssql/article.php/3672926/Scripting-the-Installation-of-SQL-Server-2005.htm
Thursday, December 16, 2010
Microsoft SQL Server Denali description
A comprehensive data platform that is more secure, reliable, manageable and scalable
Microsoft SQL Server code-named “Denali” empowers organizations to be more agile in today’s competitive market. Customers can efficiently deliver mission-critical solutions through a highly scalable and available platform. Industry-leading tools help developers quickly build innovative applications while data integration and management tools help deliver credible data reliably to the right users and new user experiences expand the reach of BI to enable meaningful insights.
Here are some key features of "Microsoft SQL Server Denali":
What's New in This Release: [ read full changelog ]
Thanks To :- http://www.softpedia.com/get/Internet/Servers/Database-Utils/Microsoft-SQL-Server.shtml
Tuesday, December 7, 2010
Thanks to :- http://www.mssqltips.com/tip.asp?tip=1936
- Analyze the disk space of the target server for the new database, if the disk space is not enough add more space on the target server
- Confirm the data and log file location for the target server
- Collect the information about the Database properties (Auto Stats, DB Owner, Recovery Model, Compatibility level, Trustworthy option etc)
- Collect the information of dependent applications, make sure application services will be stopped during the database migration
- Collect the information of database logins, users and their permissions. (Optional)
- Check the database for the Orphan users if any
- Check the SQL Server for any dependent objects (SQL Agent Jobs and Linked Servers)
- Check, if the database is part of any maintenance plan
Below are various scripts you can run to collect data.
Script to Check the Disk and Database Size
-- Procedure to check disc space
Script to Check Database Properties
Another Script to Check Database Properties
declare @dbdesc varchar(max)
Script to List Orphan Users
Script to List Linked Servers
Script to List Database Dependent Jobs
Database Migration Checklist
These are the steps you would go through to make the change.1. Stop the application services
2. Change the database to read-only mode (Optional)
-- Script to make the database readonly
4. Restore the databases on the target server on the appropriate drives
5. Cross check the database properties as per the database property script output, change the database properties as per the pre migration- checklist
Script to Change DB Owner
This will change the database owner to "sa". This can be used to change to any owner you would like.
Script to Turn on Trustworthy Option
If trustworthy option was set, this will turn it on for the database.
ALTER DATABASE database_name SET TRUSTWORTHY ON
Script to Change the Database Compatibility Level
When you upgrade to a new version, the old compatibility level will remain. This script shows how to change the compatibility level to SQL Server 2005 compatibility .
ALTER DATABASE DatabaseName
6. Execute the output of Login transfer script on the target server, to create logins on the target server you can get the code from this technet article: http://support.microsoft.com/kb/246133.
7. Check for Orphan Users and Fix Orphan Users
Script to Check and Fix Orphan Users
-- Script to check the orphan user
8. Execute DBCC UPDATEUSAGE on the restored database.
Run the DBCC UPDATEUSAGE command against the migrated database when upgrading to a newer version of SQL Server.
DBCC UPDATEUSAGE('database_name') WITH COUNT_ROWS
9. Rebuild Indexes (Optional) As per the requirement and time window you can execute this option.
Take a look at this tip to rebuild all indexes.
This will rebuild or reorganize all indexes for a particular table.
Index Rebuild :- This process drops the existing Index and Recreates the index.
Index Reorganize :- This process physically reorganizes the leaf nodes of the index.
-- Script for Index Rebuild
11. Recompile procedures
Take a look at this tip to recompile all objects.
This will recompile a particular stored procedure.
12. Start the application services, check the application functionality and check the Windows event logs.
13. Check the SQL Server Error Log for login failures and other errors
Take a look at this tip on how to read SQL Server error logs.
EXEC xp_readerrorlog 0,1,"Error",Null
14. Once the application team confirms that application is running fine take the databases offline on the source server or make them read only
-- Script to make the database readonly
- Test the process to determine how much time and disk space would be needed by using the backup and recovery process.
- Meet with your technical and business teams to find out how much time is available for the migration and plan the activity
- Design the rollback plan, if the application is not working fine
- Add more migration cases in your checklist, for example check if the database requires any server level change (For example CLR, XP_Cmdshell etc)
- Some of these scripts give you the base command to update a portion of the data, enhance the process to hit each object in your database.