“SQL Server error 945 database cannot be opened due to inaccessible files or insufficient memory or insufficient space on disk”

This error occurs when SQL Server can’t recover missing files or may be backup is corrupted. The effect of this error are, Database in suspected mode, Stop all the database transactions, Stop other operation of a database.

The possible solution are,

• Remove unnecessary files from hard drive and free space of hard disk. If possible add new large size hard drive
• Check the account permission
• Database must set to Autogrowth
• MDF and LDF files should not mark as read only

In the previous post, I have shared basic theory on SQL Server Database Snapshot.

SQL Server: What is Database Snapshot and How it works?

In this post, I am sharing T-SQL scripts to create Snapshot Database in SQL Server.

First, Create one test database:

USE master
GO
CREATE DATABASE TestRND
GO

Create a table with sample data:

USE TestRND
GO
CREATE TABLE tbl_TestSnapshot
(ID INTEGER PRIMARY KEY, Name VARCHAR(50))
GO

INSERT INTO tbl_TestSnapshot VALUES 
(1,'Anvesh'),(2,'Neevan')
,(3,'Roy'),(4,'Martin')
,(5,'Jenny'),(6,'Kavia')
GO

Create a Snapshot Database:
Please specify source database .mdf file name and file path and create a new sparse file for Snapshot with .ss extension.

USE master
GO
CREATE DATABASE TestRND_SS
ON
(NAME=TestRND,FILENAME='C:\Program Files (x86)\Microsoft SQL Server\MSSQL11.MSSQL_DBRND\MSSQL\DATA\TestRND_SS.ss')
AS SNAPSHOT OF TestRND
GO

Update data into source database:

USE TestRND
GO
UPDATE tbl_TestSnapshot SET Name = 'dbrnd' WHERE ID=1
GO

USE TestRND_SS
GO
SELECT *FROM tbl_TestSnapshot
GO

/* Result...

ID          Name
------  ------------
1           Anvesh
2           Neevan
3           Roy
4           Martin
5           Jenny
6           Kavia
*/