Logical File Name SQL Scripts: SQL Script to Return Logical and Physical Names for Databases

Microsoft SQL ServerSince the release of Microsoft Dynamics GP 2018, on the 1st December 2018, we have been busy with a few upgrade projects for clients. Our standard recommendation is to have a standalone test system for performing UAT and this means backing up and restoring databases.

While the backups are easy to do, the restores can be trickier when one database has been restored into another, as this means the logical filename will not match the physical one.

This isn’t an issue when the client has only a handful of databases, but when there are 30 or even a hundred, it becomes much more of an issue. However, you can select database details in SQL Server from the sys.master_files single, system-wide view:

/*
Created by Ian Grieve of azurecurve|Ramblings of a Dynamics GP Consultant (http://www.azurecurve.co.uk)
This code is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0 Int).
*/
SELECT
	DB_NAME(database_id) AS DatabaseName
	,name AS LogicalFileName
	,physical_name AS PhysicalFileName 
FROM
	sys.master_files
ORDER BY
	DB_NAME(database_id)

This gets the logical file names which can be used to update the restore script so you can easily create backup scripts rather than having to go through the Restore Database for each database individually.

Logical File Name SQL Scripts: Series Index

Microsoft SQL ServerSince the release of Microsoft Dynamics GP 2018, on the 1st December 2018, we have been busy with a few upgrade projects for clients. Our standard recommendation is to have a standalone test system for performing UAT and this means backing up and restoring databases.

While the backups are easy to do, the restores can be trickier when one database has been restored into another, as this means the logical filename will not match the physical one.

This isn’t an issue when the client has only a handful of databases, but when there are 30 or even a hundred, it becomes much more of an issue. However, you can select database details in SQL Server from the sys.master_files single, system-wide view.

I started off with a simple script and then developed it through to generating the backup and restore scripts directly.

This small series includes the four scripts I created.

Automate SQL Server Express Backups

Microsoft SQL ServerWe have a couple of small clients who are hosting Microsoft Dynamics GP on SQL Server Express; this is a supported platform, but does not include SQL Server Agent. This means that backups cannot be automated in SQL Server as it is the Agent which provides this functionality.

However, there are still ways in which backups can be automated; one way is to create a DOS batch file and execute it using Windows Scheduler.

The below is a SQL statement which can be executed to generate the DOS batch file commands to backup all of the databases for a Microsoft Dynamics GP implementation.

/*
Created by Ian Grieve of azurecurve|Ramblings of a Dynamics GP Consultant (http://www.azurecurve.co.uk)
This code is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.0 UK: England & Wales (CC BY-NC-SA 2.0 UK).
*/
DECLARE @SQL NVARCHAR(MAX) = 'echo off
cls
echo -- BACKUP DATABASE --
set SERVERNAME=2018SQL1\GP
set DATESTAMP=%DATE:~-4%-%DATE:~4,2%-%DATE:~7,2%
set SYSTEMDATABASENAME=DYNAMICS
set BACKUPFILENAME=C:\SQLServer\Backup\%SYSTEMDATABASENAME%_%DATESTAMP%.bak
echo.
sqlcmd -E -S %SERVERNAME% -d master -Q "BACKUP DATABASE [%SYSTEMDATABASENAME%] TO DISK = N''%BACKUPFILENAME%'' WITH NOFORMAT, INIT, NAME = N''%SYSTEMDATABASENAME%-Full Database Backup'', SKIP, NOREWIND, NOUNLOAD, STATS = 10"
echo.'

SELECT @SQL = @SQL + STUFF((
					SELECT 
						'
set DATABASENAME=' + RTRIM(INTERID) + '
set BACKUPFILENAME=C:\SQLServer\Backup\%DATABASENAME%_%DATESTAMP%.bak
sqlcmd -E -S %SERVERNAME% -d master -Q "BACKUP DATABASE [%DATABASENAME%] TO DISK = N''%BACKUPFILENAME%'' WITH NOFORMAT, INIT, NAME = N''%DATABASENAME%-Full Database Backup'', SKIP, NOREWIND, NOUNLOAD, STATS = 10"
echo.'
					FROM
						DYNAMICS.dbo.SY01500
					FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 1, '')

SELECT @SQL

If you are using a named system database, the two highlighted sections need to be amended.

To run the script, set the output to file and then copy and paste the resulting script into a file with the .bat extension; this batch file can then be scheduled to run automatically using Windows Scheduler.