What is transaction log in MySQL?

The transaction log in MySQL is not enabled by default and must be enabled in order to log transactions. To determine if the transaction log is active you can use the “show binary logs” statement: SHOW BINARY LOGS; If binary logging is disabled you will receive an error stating “you are not using binary logging.”

How do I view MySQL transaction logs?

If you’re using MySql on Windows, there’s a file located in C:\Program Files\MySQL\MySQL Server 5.0\data (assuming a C: drive for the installation target and MySql version 5.0), that is called %COMPUTERNAME%. log that contains the commands that have been executed.

How do I manage transactions in MySQL?

MySQL control transactions with the help of the following statement:

1. MySQL provides a START TRANSACTION statement to begin the transaction.
2. We will use a COMMIT statement to commit the current transaction.
3. We will use a ROLLBACK statement to roll back the current transaction.

How do I move a MySQL table to another database?

To move a table from one mysql database to another,

1. Open phpmyadmin >Select table in phpmyadmin.
2. Export table.
3. Add the table to the other database.

How does a transaction log work?

A transaction log is a sequential record of all changes made to the database while the actual data is contained in a separate file. The transaction log contains enough information to undo all changes made to the data file as part of any individual transaction.

How do I view a TRN file?

How to open file with TRN extension?

1. Install Microsoft SQL Server software.
2. Check the version of Microsoft SQL Server and update if needed.
3. Assign Microsoft SQL Server to TRN files.
4. Check the TRN for errors.

What is the purpose of transaction log?

Transaction Log is used for rolling back the changes done by some incomplete/broken transactions. This function is done when a ROLLBACK command is issued or some errors have been detected by the SQ Database Engine. In case of server failure, some changes are never recorded in the data file from the buffer cache.

What is transaction support in MySQL?

MySQL supports local transactions (within a given client session) through statements such as SET autocommit , START TRANSACTION , COMMIT , and ROLLBACK . See Section 13.3. 1, “START TRANSACTION, COMMIT, and ROLLBACK Statements”. XA transaction support enables MySQL to participate in distributed transactions as well.

What are the commands used for transaction control processing?

The following commands are used to control transactions. COMMIT − to save the changes. ROLLBACK − to roll back the changes. SAVEPOINT − creates points within the groups of transactions in which to ROLLBACK.

How do I move a table from one database to another?

In object Explorer , go to source database and select table to move….In SQL Server Management Studio you have Import and Export Wizard :

1. Right click on db name( DB_2 )
2. Tasks.
3. Import Data.
4. Choose data source ( DB_1 )
5. Choose destination ( DB_2 )
6. Choose copy data from one ore more tables.
7. Choose your table ( T1 )
8. Finish.

What is MySQL Perror command line utility?

perror is a command-line utility that is included with MySQL distributions. The purpose of the perror program is to show you information about the error codes used by MySQL when operating system-level errors occur.