#Workbench mysql optimizer free#

And, unused space is no more.ДЄlso, the table sizes have come down too. You can easily deduce from the outcome that MySQL OPTIMIZE TABLE command has significantly reduced the size. It will fetch the size of the total as well as the unused-space the three tables are claiming.

Rename the temp table to the original name in the end.ДЄfter finishing up with optimization, you can issue the below command.

Deletes the original one after optimizing it, and.

While running optimization on a table, MySQL does the following tasks: Secondly, we can optimize multiple tables together, as shown below: mysql> OPTIMIZE TABLE EMPLOYEES, SALESINFO, FINANCES We can use the above in one of the following ways:ДЇirst, we optimize one table using this MySQL statement. This command uses the following syntax: mysql> OPTIMIZE TABLE table1.

The results indicate that all three tables are a candidate for optimization as they are causing high fragmentation.

The columns USED_SPACE_MB and UNUSED_SPACE_MB are showing data in MB.

#Workbench mysql optimizer free#

First, the SELECT command is listing all tables that are causing more than 1000 MB of free space.We can interpret the following facts from the output: | TABLE_NAME | USED_SPACE_MB | UNUSED_SPACE_MB | ROUND(DATA_FREE/1024/1024) AS UNUSED_SPACE_MBДЄfter running the above SQL query, you shall see this type of result: +-+-+-+ It should fetch the tables which are accounting for the unused space. Hence, connect to the MySQL DB instance, and run the below query. You need to analyze which table is consuming more space in your database. MySQL OPTIMIZE TABLEД«efore you do optimization, first confirm whether your MySQL database is suffering from fragmentation or not. Hence, weвЂ™ll today explainВ how to use the MySQL OPTIMIZE TABLE to defrag tables and free up space. So, experts recommend that you must defrag your MySQL tables regularly. Therefore, a lot of unused space would go in vain, and also put a high impact on the performance. If your database is receiving a lot of deletes and updates calls, then it might lead to fragmentation in your MySQL data files. WeвЂ™ll describe the complete usage of this method with the help of simple examples. This tutorial explains MySQL OPTIMIZE TABLE statement which defrags tables and recovers unused space.