How can I find out the location of my (localdb) SQL Server 2012 database and back it up?

Question

I am using VS2012 and I have a database created:

(localdb)\\v11.0 (SQL Server 11.0.2100 - T61\\Alan)

How can I find out the physical location o

Answer 1

Try this one -

DECLARE 
      @SQL NVARCHAR(1000)
    , @DB_NAME NVARCHAR(100) = 'AdventureWorks2008R2'

SELECT TOP 1 @SQL = '
    BACKUP DATABASE [' + @DB_NAME + '] 
    TO DISK = ''' + REPLACE(mf.physical_name, '.mdf', '.bak') + ''''
FROM sys.master_files mf
WHERE mf.[type] = 0
    AND mf.database_id = DB_ID(@DB_NAME)

PRINT @SQL
EXEC sys.sp_executesql @SQL

Output -

BACKUP DATABASE [AdventureWorks2008R2] 
TO DISK = 'D:\DATABASE\SQL2012\AdventureWorks2008R2.bak'