What is a transaction log in SQL Server?

What is the purpose of transaction log?

A transaction log is used to record the fact that a transaction is set to occur as well as the information needed by the database server to recover the data back to a consistent state in event of a sever failure while it is writing information to disk.

How do I find the transaction log in SQL Server?

Reading the transaction log in SQL Server – from hacks to...1Using fn_dblog. fn_dblog is a SQL Server function, albeit undocumented, that can be utilized to decrypt the active region of an online SQL Server transaction log. ... 2Using fn_dump_dblog. ... 3Using DBCC PAGE. ... 4Use ApexSQL Log.Reading the transaction log in SQL Server - from hacks to solutions

How do I manage transaction logs in SQL Server?

Control transaction log file growth Use the ALTER DATABASE (Transact-SQL) File and Filegroup options statement to manage the growth of a transaction log file. Note the following: To change the current file size in KB, MB, GB, and TB units, use the SIZE option. To change the growth increment, use the FILEGROWTH option.

What does transaction mean in SQL?

A transaction is a logical unit of work that contains one or more SQL statements. A transaction is an atomic unit. The effects of all the SQL statements in a transaction can be either all committed (applied to the database) or all rolled back (undone from the database).