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Like the attach and detach method, the backup and restore GUI and Transact-SQL commands support changing the file locations to the new SQL Server instance. You can also use SQL Server’s native dataset backup and restore method to move a database.
#Download adventureworks database 2005 backup file Offline
In normal SQL Server administration, you usually only take a database offline when you need to repair it, so it is not a good method for moving a database. Taking a database offline is not meant as a substitute for detaching a database and attaching it in another location. By taking the database offline, it still remains listed as a database on the server, but no one can connect to it. Similar to detaching a database, users cannot connect to it when it is offline. Using this technique the database is still listed in that SQL Server but the underlying database files are unlocked and you can copy them. In SQL Server, you can use the ALTER DATABASE command to take a database offline. You can choose to take a database offline and copy the files to a new location as a method for moving the server. It’s just not as transparent an operation as the backup and restore method. In SQL Server 2005, the detach-and-attach method also recognizes the full-text catalog files, and provided you also manually copy them appropriately, attaching the database in a new location will go smoothly. In SQL Server 2000, if your database has full-text indexes, you will have to manually move the full-text catalog files to the new database server and make sure that the new SQL Server can recognize their location. However, this technique has some disadvantages. When you attach the database to a new SQL Server, you have the option of changing the locations of the data and log files, if you must put them on different volumes.ĭetaching and attaching a database is an essential tool for the database administrator and is often a very practical way of moving a database.
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Once a database is detached, no users can connect to it, the files are unlocked, and you are free to copy the files to a new location. As part of the detach process, SQL Server removes the database from its registered databases so that the database is no longer recorded as belonging to that SQL Server. When you detach a database, SQL Server runs a checkpoint to make sure that all the changed database data in SQL Server’s data cache is written to disk. SQL Server 20 support both GUI and stored-procedure approaches to detaching and attaching a database. back up the database and restore it on the other serverĮach method has advantages and disadvantages that I’ll describe below.take the database offline and copy the files.SQL Server provides essentially three techniques for moving a database: If you’ve changed the volume names or file structure, various methods make it possible to recognize the new locations.
#Download adventureworks database 2005 backup file windows
It is always easier to keep exactly the same Windows volume and file structure on the new server as on the old server, though that is not always necessary. In a true database move you will have placed the copied database data and log and other files in new locations. When you have copied the database to a new SQL Server instance, usually on a new database server, you must then make the database active. Therefore if you want to move a database from one server to another, you must either unlock those files or else create a backup copy and prevent any further changes to the database while you are moving the copy. When SQL Server has an active database, it locks the underlying data files and they cannot be copied.
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In my next installment I’ll discuss the dependencies and additional related objects that you must also move along with the database data. In this article I’ll describe the methods for moving the database. While you can choose from many methods to accomplish these steps, it can be difficult to complete the move given all the database’s dependencies. It takes essentially three steps to move a database from one server to another: take the database out of production, copy it to another server, and then bring the copy back into production. Investigating the types of moves ahead of time can make planning for a database migration easier. But there are various methods for moving a database, and some have more advantages than others. Moving a SQL Server database from one server to another is simple-initially.