Can you TRUNCATE in a transaction?

Can you TRUNCATE in a transaction?

In Informix, the behaviour of TRUNCATE is slightly different; you can use TRUNCATE in a transaction, but the only statements permissible after that are COMMIT and ROLLBACK.

What is difference between TRUNCATE and DELETE in MySQL?

Key differences between DELETE and TRUNCATE The DELETE statement is used when we want to remove some or all of the records from the table, while the TRUNCATE statement will delete entire rows from a table. DELETE is a DML command as it only modifies the table data, whereas the TRUNCATE is a DDL command.

What does truncated mean in MySQL?

Description. The TRUNCATE TABLE statement is used to remove all records from a table in MySQL. It performs the same function as a DELETE statement without a WHERE clause.

Can we roll back after TRUNCATE?

“TRUNCATE TABLE is not logged and therefore cannot be rolled back. You have to use DELETE, if in a transaction.”

Can You truncate a table in a transaction?

You can then truncate/delete the old data. According to this URL, as of MySQL 5.1.32, TRUNCATE TABLE is DDL and NOT DML like DELETE. This means that TRUNCATE TABLE will cause an implicit COMMIT in the middle of a transaction block. So, use DELETE FROM on a table you need to empty instead of TRUNCATE TABLE.

When to use delete instead of truncate in MySQL?

According to this URL, as of MySQL 5.1.32, TRUNCATE TABLE is DDL and NOT DML like DELETE. This means that TRUNCATE TABLE will cause an implicit COMMIT in the middle of a transaction block. So, use DELETE FROM on a table you need to empty instead of TRUNCATE TABLE.

Do you use transaction or table lock in MySQL?

Do not use any transactions or table locks. You can use 2 table with the same structure and then use RENAME. RENAME is atomic and so it’s not interruptible. Using MySQL’s Exchanging Partitions and Subpartitions with Tables you can work on a seperate identical table in your own time.

How to start a transaction in MySQL server?

Second, log in to the MySQL database server in a separate session and query data from the orders table: In this second session, we still can see the data from the orders table. We have made the changes in the first session.