There's no doubt that log file will become larger and larger with the growth of SQL Server database file. However, it will influence the running speed of computer and occupy more and more space. This is not what we expect to see. So sometimes, it is necessary to shrink even delete SQL Server log file.
Errorlog is the file written by SQL Server with general error/informational messages. This should tell you which process is generating the AV errors. You can open that file in notepad to get more info. In the short-term, you can delete files named SQLDumpnnnn.mdmp, since they are not active (though you'll lose the debug info contained in them). In SQL Server Management Studio, open the MANAGEMENT folder, then right click on SQL SERVER LOGS and say CONFIGURE. Check the LIMIT ERROR LOGS box and set the number to 30 (a month's worth). Now, set up a new job in the SQL Agent that runs spcycleerrorlog every night at midnight. Press Windows + R and paste the location of the dump file (erase the dump file name as we only want to navigate to the location). Search for the file name (MEMORY.DMP) and delete You might require administrative privileges to perform this action. Restart your computer and hopefully, the problem will be solved.
The following introduced ways will be applied to SQL Server 2014/2012 to delete log file with SQL Server Management Studio or Transact – SQL.
Way 1: Delete SQL Server Log File in SQL Server Management Studio
Step 1: Shrink Server log file1. Login in SQL Server Management Studio. In Object Explorer, expand that instance that is connected to SQL Server.
2. Unfold Databases and then right-click the database that you want to shrink. Dying light - gun psycho bundle download for mac.
3. Turn to Tasks - Shrink, and then click Files.
4. Select the file type and file name.
Generally, log file will be shrunk after you click OK now. But if you want to set it in more detailed, options below can be selected.
Option 1: Select Release unused space check box.
Option 2: Select Reorganize files before releasing unused space check box.
If this is selected, the Shrink file to value must be specified. By default, the option is cleared.
Option 3: Enter the maximum percentage of free space to be left in the database file after the database has been shrunk. The value can be between 0 and 99. This option is only available when Reorganize files before releasing unused space is enabled.
But if we prepare to delete data, the primary data file cannot be made smaller than the size of the primary file in the model database.
Option 4: Select the Empty file by migrating the data to other files in the same filegroup check box.
5. Click OK.
Step 2: Delete SQL Server log file1. In Object Explorer, make instance connected to SQL Server Database Engine and then expand that instance.
2. Expand Databases, right-click it from which to delete the file, and then click Properties.
3. Select the Files page. In the Database files grid, select the file to delete and then click Remove.
4. Click OK.
Way 2: Delete SQL Server Log File with Transact-SQL
If you are familiar with Transact-SQL, follow this way to work for SQL Server database or log file deletion.
Step 1: Empty SQL log file1. Connect to the Database Engine.
2. From the Standard bar, click New Query.
3. Copy and paste the following example into the query window and click Execute.
USE UserDB;
GO
DBCC SHRINKFILE (DataFile1, 8);
GO
Delete Sql Dump Files Online
This example uses DBCC SHRINKFILE to shrink the size of a data file named DataFile1 in the UserDB database to 8 MB.
Step 2: Delete SQL Server log file1. Connect to the Database Engine.
2. From the Standard bar, click New Query.
3. Copy and paste the following example into the query window and click Execute. This example removes the file test1dat4.
USE master;
GO
ALTER DATABASE AdventureWorks2012
REMOVE FILE test1dat4;
GO
Comparing Way 1 to Way 2, the first way is undoubtedly easier for SQL Server new users. But command can work fast. However, it will be easier to controll failure rate when deleting SQL Server file using SQL Server Management Studio. In a word, they can shrink and then delete database file or log file. The difference is just the implementation.
Related Articles:
Can we delete Transaction Log File?
We can not delete primary transaction log file, but we can delete secondary log files.
Sometimes we can create a second log file on another disk as a workaround because the log file is full.
If we do not delete these temporary secondary log files over time, log file count will increase.
When we have free space on the disk where the first log file is located, or when we move this first log file to another disk with sufficient space, we can delete these temporary secondary log files.
To see how a second log file is added to the database, you may want to read the article 'How To Add The Second Log File to the Database'.
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If your database's recovery model is Full Recovery Model, I recommend that you backup your transaction log. So, your transaction log file automatically truncated after log backup and this prevents your transaction log to growing too much.
You may want to read the following articles to learn detailed information about recovery models and transaction log.
'What is Database Recovery Model',
'What is SQL Server Transaction Log',
'How To Shrink SQL Server Transaction Log'
Empty Secondary Transaction Log File Before Removing
After backing up the transaction log, we need to shrink the log file we want to delete with empty option.
First we right-click on the database and click Tasks-> Shrink-> Files.
We select the Log option from the File type section as shown below.
We choose the file we want to shrink from the file name.
In the Shrink action section, we also select 'Empty file by migrating the data to other files in the same filegroup'.
In this way we are able to transfer the data in the log file to the other log files.
Before we click Ok, let's take the script by clicking on the 'Script' at the top left. This will output a script like the following.
2 4 | GO GO |
Remove Secondary Transaction Log File
Right-click on the database and click Properties.
Go the 'Files' tab on the left side and select the log file that you want to delete from the 'database files' secion and click on the remove button at the bottom right. Finally, click 'Script' on the upper side to get the remove secondary log file script.
This will output a script like the following.
Sql Server Dump File
Option 1: Select Release unused space check box.
Option 2: Select Reorganize files before releasing unused space check box.
If this is selected, the Shrink file to value must be specified. By default, the option is cleared.
Option 3: Enter the maximum percentage of free space to be left in the database file after the database has been shrunk. The value can be between 0 and 99. This option is only available when Reorganize files before releasing unused space is enabled.
But if we prepare to delete data, the primary data file cannot be made smaller than the size of the primary file in the model database.
Option 4: Select the Empty file by migrating the data to other files in the same filegroup check box.
5. Click OK.
Step 2: Delete SQL Server log file1. In Object Explorer, make instance connected to SQL Server Database Engine and then expand that instance.
2. Expand Databases, right-click it from which to delete the file, and then click Properties.
3. Select the Files page. In the Database files grid, select the file to delete and then click Remove.
4. Click OK.
Way 2: Delete SQL Server Log File with Transact-SQL
If you are familiar with Transact-SQL, follow this way to work for SQL Server database or log file deletion.
Step 1: Empty SQL log file1. Connect to the Database Engine.
2. From the Standard bar, click New Query.
3. Copy and paste the following example into the query window and click Execute.
USE UserDB;
GO
DBCC SHRINKFILE (DataFile1, 8);
GO
Delete Sql Dump Files Online
This example uses DBCC SHRINKFILE to shrink the size of a data file named DataFile1 in the UserDB database to 8 MB.
Step 2: Delete SQL Server log file1. Connect to the Database Engine.
2. From the Standard bar, click New Query.
3. Copy and paste the following example into the query window and click Execute. This example removes the file test1dat4.
USE master;
GO
ALTER DATABASE AdventureWorks2012
REMOVE FILE test1dat4;
GO
Comparing Way 1 to Way 2, the first way is undoubtedly easier for SQL Server new users. But command can work fast. However, it will be easier to controll failure rate when deleting SQL Server file using SQL Server Management Studio. In a word, they can shrink and then delete database file or log file. The difference is just the implementation.
Related Articles:
Can we delete Transaction Log File?
We can not delete primary transaction log file, but we can delete secondary log files.
Sometimes we can create a second log file on another disk as a workaround because the log file is full.
If we do not delete these temporary secondary log files over time, log file count will increase.
When we have free space on the disk where the first log file is located, or when we move this first log file to another disk with sufficient space, we can delete these temporary secondary log files.
To see how a second log file is added to the database, you may want to read the article 'How To Add The Second Log File to the Database'.
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If your database's recovery model is Full Recovery Model, I recommend that you backup your transaction log. So, your transaction log file automatically truncated after log backup and this prevents your transaction log to growing too much.
You may want to read the following articles to learn detailed information about recovery models and transaction log.
'What is Database Recovery Model',
'What is SQL Server Transaction Log',
'How To Shrink SQL Server Transaction Log'
Empty Secondary Transaction Log File Before Removing
After backing up the transaction log, we need to shrink the log file we want to delete with empty option.
First we right-click on the database and click Tasks-> Shrink-> Files.
We select the Log option from the File type section as shown below.
We choose the file we want to shrink from the file name.
In the Shrink action section, we also select 'Empty file by migrating the data to other files in the same filegroup'.
In this way we are able to transfer the data in the log file to the other log files.
Before we click Ok, let's take the script by clicking on the 'Script' at the top left. This will output a script like the following.
2 4 | GO GO |
Remove Secondary Transaction Log File
Right-click on the database and click Properties.
Go the 'Files' tab on the left side and select the log file that you want to delete from the 'database files' secion and click on the remove button at the bottom right. Finally, click 'Script' on the upper side to get the remove secondary log file script.
This will output a script like the following.
Sql Server Dump File
Phpmyadmin Sql Dump
2 4 6 | GO GO GO |
How To Delete Dump Files
After removing the secondary log file, it may appear that it has not been removed from the database for a while. Do not worry, this is normal. It will return to normal state after a while.
