in Oracle

Q

How To Delete All Rows from a Table in Oracle?

✍: FYIcenter.com

A

If you want to delete all rows from a table, you have two options:

  • Use the DELETE statement with no WHERE clause.
  • Use the TRUNCATE TABLE statement.

The TRUNCATE statement is more efficient the DELETE statement. The tutorial exercise shows you a good example of TRUNCATE statement:

SELECT COUNT(*) FROM fyi_links;
  COUNT(*)
----------
         3

TRUNCATE TABLE fyi_links;
Table truncated.

SELECT COUNT(*) FROM fyi_links;
  COUNT(*)
----------
         0

 

Understanding SQL DML Statements for Oracle

⇒⇒Oracle Database Tutorials

2016-10-17, 145👍, 0💬