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Written By Pallavi
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Updated on August 10th, 2019
SQL server database mainly comprises of MDF, NDF, and LDF. All of them are very necessary for smooth functioning of SQL server. Anyhow, if any one of them is affected, then SQL server stops functioning smoothly. In this post, you will see about, what are the different causes of SQL log file corruption and methods to fix it.
The transaction log files of the SQL database is important for maintaining the transaction log of all the consistency. There is one or more than one log file for each database, which is used to maintain the log of all the transactions. However, a user sometimes encounters several errors in case log file of SQL server gets corrupted. So, let’s what are the causes of such errors.
Firstly, change the database into emergency mode, then detach it using sp_detach_db. Follow the below syntax:
ALTER DATABASE database_name
{
<set_database_options>
}
[;]
<set_database_options>::=
SET
{
{<optionspec> [ ,….n] [ WITH <termination>] }
}
<optionspec>::=
{
<db_state_option>
}
<db_state_option> :: =
{ ONLINE | OFFLINE | EMERGENCY }
After that, you need to rename it or delete the corrupt log files
Syntax:
CREATE DATABASE database_name
ON <filespec> [,…n]
FOR {ATTACH_REBUILD_LOG}
[;]
Note: Make sure that you set the database is in emergency mode
As you have seen one really need to be technically expert in order to successfully execute syntax. Any error while executing syntax, can lead to more complicated issue in SQL server. Therefore, to successfully fix log file corruption use SQL Log Recovery software
As you can see to repair transaction log file, one really need to be technically expert. And, also it does not give desired output. Therefore, only effective approach left to repair transaction log file is via recovery software.
About The Author:
Pallavi is a content writer in the field of data recovery and email migration. She has a passion for creating engaging and thought-provoking content. With several years of experience in the field, she has developed a deep understanding of various writing styles and formats,
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