How do i take a backup of a database with multiple filegroups

Hei!
  i need to export a new database from en existing one. The old db consists of appros 120 tables, over 3 file groups.
I need a selection of approx 55 tables which is spread over these 3 filegroups.
how do i do it

//shanj
shanjAsked:
Who is Participating?
 
Daniel_PLConnect With a Mentor DB Expert/ArchitectCommented:
Hello.
As far as I understand you would like to extract only about half of tables from your current database.
To extract only some tables you can restore full database backup and drop unwanted tables, export data to files and then import it back to new db or use SQL Server Import and Export Wizard.

About error you are getting.
Where do you want to restore your backup - at the same server?
How do you perform restore operation?

You need to be aware of that SQL Server create files in the same locations as they are in the backup.
If you want to restore database files to other locations you need to use WITH MOVE clause and provide new files locations.

You can check logical file names in your backup by running following command:

RESTORE FILELISTONLY FROM MyDB_bak
--OR
RESTORE FILELISTONLY FROM DISK=N'<path to your backup file>'

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lcohanDatabase AnalystCommented:
You cab issue a FULL database backup like below:

--Add dump devices for all db's on E:\ drive
exec sp_addumpdevice @devtype = 'disk' , @logicalname = 'MyDB_bak'      ,@physicalname = 'H:\SQL_BACKUP\MyDB.bak'

--backup db
BACKUP DATABASE [MyDB] TO  [MyDB_bak] WITH COPY_ONLY, NOFORMAT, INIT,  NAME = N'MyDB-Full Database Backup', SKIP, NOREWIND, NOUNLOAD,  STATS = 10
GO
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shanjAuthor Commented:
Tried this approach , but when i try to restore the backup i get en error.
Logical file 'STAGE_RT_HIST' is not part of database 'STAGE_RT_HIST'. Use RESTORE FILELISTONLY to list the logical file names.

//shan
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shanjAuthor Commented:
Thanks
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