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What are log files in SQL?

Contents
  1. What is log file in database?
  2. Where are the SQL log files?
  3. How do I view SQL log files?
  4. What is data file and log file in SQL Server?
Every SQL Server database has a transaction log that records all transactions and the database modifications made by each transaction. The transaction log is a critical component of the database. If there is a system failure, you will need that log to bring your database back to a consistent state. 8 окт. 2020 г.


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.

Where are the SQL log files?

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”.

How do I view SQL 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 is data file and log file in SQL Server?

At a minimum, every SQL Server database has two operating system files: a data file and a log file. Data files contain data and objects such as tables, indexes, stored procedures, and views. Log files contain the information that is required to recover all transactions in the database.

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