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What is the log file in SQL Server?

Contents
  1. Where is log file in SQL Server?
  2. What is log file in database?
  3. How do I view SQL Server log files?
  4. What happens when SQL log file is full?
A transaction log is a file – integral part of every SQL Server database.It contains log records produced during the logging process in a SQL Server database. The transaction log is the most important component of a SQL Server database when it comes to the disaster recovery – however, it must be uncorrupted. 11 февр. 2014 г.


Where is log file in SQL Server?

The log files are stored in the log folder of the instance. This folder is located by default in “Program Files\Microsoft SQL Server\MSSQL{nn}. MyInstance\MSSQL\Log”.

What is log file in database?

A log file is a computer-generated data file that contains information about usage patterns, activities, and operations within an operating system, application, server or another device.

How do I view SQL Server log files?

View Log Files1In Object Explorer, expand Management.2Do either of the following: Right-click SQL Server Logs, point to View, and then click either SQL Server Log or SQL Server and Windows Log. Expand SQL Server Logs, right-click any log file, and then click View SQL Server Log. You can also double-click any log file.Open Log File Viewer - SQL Server | Microsoft Docs

What happens when SQL log file is full?

When the transaction log becomes full, SQL Server Database Engine issues a 9002 error. The log can fill when the database is online, or in recovery. If the log fills while the database is online, the database remains online but can only be read, not updated.

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