What is the difference between Truncate & Delete?

DELETE is a DML statement that deletes complete rows from the table and produces the count of deleted rows. It also allows us to filter and delete any specific records using the WHERE clause from the table. After executing this command, we can rollback the deleted data because it makes an entry in the transaction log for each deleted row.

DELETE FROM table_name WHERE condition;  

TRUNCATE is a DDL statement used to remove complete data from the table without removing the table structure. So indexes, constraints, columns, the structure is maintained even after the statement is executed. We cannot use the WHERE clause with this command so that filtering of records is not possible. After executing this command, we cannot rollback the deleted data because the log is not maintained while performing this operation.

The truncate command deallocates the pages instead of rows and makes an entry for the deallocating pages instead of rows in transaction logs. This command locks the pages instead of rows; thus, it requires fewer locks and resources. Note that we cannot use the truncate statement when a table is referenced by a foreign key or participates in an indexed view.

TRUNCATE TABLE table_name;

Invest now in Acorns!!! 🚀
Join Acorns and get your $5 bonus!

Acorns is a micro-investing app that automatically invests your "spare change" from daily purchases into diversified, expert-built portfolios of ETFs. It is designed for beginners, allowing you to start investing with as little as $5. The service automates saving and investing. Disclosure: I may receive a referral bonus.

Invest now!!! Get Free equity stock (US, UK only)!

Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.

The Robinhood app makes it easy to trade stocks, crypto and more.

Webull! Receive free stock by signing up using the link: Webull signup.