TRUNCATE TABLE in MariaDB

TRUNCATE TABLE in MariaDB

A TRUNCATE TABLE allows all records from a table to be deleted, resetting the table to an empty state. Compared with the DELETE statement, which deletes rows one by one and causes increased transaction logs, TRUNCATE TABLE is a more efficient method of clearing a table....

Examples of TRUNCATE TABLE in MariaDB

To understand the TRUNCATE TABLE in MariaDB, we need a table on which we will perform the TRUNCATE TABLE command. So here we will create a table and insert some data into it....

Advantages of the TRUNCATE TABLE

Performance Efficiency: When deleting all records from a table, TRUNCATE TABLE is significantly faster than the DELETE statement. This is due to the fact that TRUNCATE does not create the same number of transaction logs, and the entire database engine does not have to process each row separately. Resource Optimization: Truncating a table takes less storage space than the DELETE statement, making it easier to recover disk space. Resetting Auto-Increment Columns: When the table contains an auto-increment column, the truncation of the table restores the auto-increment counter to its original value. This is not true for the DELETE statement, which may result in gaps in the auto-increment sequence. Reduced Locking Overhead: In general, truncate operations require less locking overhead than the DELETE statement, and thus, truncate is preferred when minimal disruption to concurrent transactions is needed....

Disadvantages of the TRUNCATE TABLE

While TRUNCATE TABLE is a powerful and efficient tool, there are certain considerations and limitations of TRUNCATE TABLE....

Conclusion

In MariaDB, TRUNCATE TABLE command is significantly important and remove all records in the table. Its good performance feature, low use of resources, and auto-increment reset capabilities make it an best option for some cases. We have saw in the advantage that TRUNCATE TABLE is faster than DELETE. But there is a limitations too which is it removes all records but DELETE can’t. While truncating the table it preserve the structure of Table....