SQL Server is a relational database
management system (RDBMS) by Microsoft that is designed for the
enterprise environment. It has got two primary query languages, T-SQL
and ANSISQL. It provides you the flexibility to access your database
from anywhere, be it from a data center, desktop, or from a mobile
device. It also provides the combined services to query, search,
synchronize, report, and analyze the database records. However, at
times it may happen that the SQL Server is unable to run. It may be
possible that the master database has gone corrupt. This can be
possible because of various reasons such as virus infections, human
errors, power outages, abrupt system shutdown while SQL Server was
open. In such cases, you should replace the corrupted database with
its updated backup. However, if the backup is not updated then you
should use MS SQL recovery software to recover SQL
database.
While working with SQL, you might encounter access denied error in
the event viewer log. It happens because the SQL Express tries to
open the Master database from C:\Program Files\Microsoft SQL
Server\MSSQL.1\MSSQL\DATA\master.mdf. However, the SQL Server does
not have the permission to run this. You need to try following the
below mentioned steps to resolve this issue.
- Open the SQL Server Configuration Manager
- Choose the SQL Server Services node.
- Right-click on the option, which is causing problem and select Properties.
Once you have selected properties, you can check out C:\Program
Files\Microsoft SQL Server\MSSQL.1\MSSQL\DATA for the security
properties. If the user does not have permission, grant permission to
the user or try running SQL Express as a different user.
Consider a scenario wherein you have MS
SQL Server 2008 installed on your system. When you log onto the SQL
Server, you are unable to do so. An error message is displayed, that
is:
“Cannot recover the master
database. SQL Server is unable to run. Restore master from a full
backup, repair it, or rebuild it. For more information about how to
rebuild the master database, see SQL Server Books Online.”
Cause:
The cause of the mentioned error
message is that the SQL Server is unable to start the master
database. If the master or tempdb database cannot be
mounted, SQL Server cannot run. It is quite possible that the master
database has gone corrupt because of various aforementioned reasons.
Resolution:
In order to resolve this issue, you
should, first of all, check whether there is an updated backup of the
master database. If yes, then you should replace it with the
corrupted database. However, if the database is not updated then you
should use efficient SQL database recovery software to perform
SQL recovery of the corrupted database. Such read-only tools
are able to recover SQL databases using fast yet sophisticated
scanning algorithms.
Stellar Phoenix SQL Database Repair is
an SQL Server recovery tool that enables you to perform SQL
database recovery of the corrupted databases. It is able to
repair various database components such as tables, defaults, stored
procedures, triggers, views, and rules. It can also repair
user-defined data types and functions and also database constraints
such as primary key, foreign key, unique key, and check. It is
compatible with Windows 8, 7, Vista, Server 2008, Server 2003, and
XP. In addition, it supports MS SQL Server 2012 and all lower
versions including 2008 R2, 2008, 2008*64, 2008 Express, 2005,
2005*64, Express, 2000, 2000*64, 7.0 and mixed formats.
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