Two common ways for orcale to clear table data

Orcale It is often used in truncate、delete To clear the data of the table

The difference between the two methods ：

1. truncate, It means truncated table , It can delete all tables without occupying resources , The advantage is fast , The disadvantage is that deletion cannot be restored , Can't delete by condition .
2. delete, It means to delete , Occupied by this operation redolog, Advantages: fast recovery and selective deletion , The disadvantage is that the deletion is slow , Mass deletion is not recommended .

The usage of the two methods ,SQL as follows

truncate table [ Table name ];
delete from [ Table name ];