How to delete table data in oracle
Two methods to delete table contents
1. Truncate table table name;
2. Delete from table name where condition;
The difference between the two methods:
truncate, which means truncate the table and can not occupy resources The advantage of deleting all tables is that it is fast, but the disadvantage is that the deletion cannot be restored and it cannot be deleted conditionally.
delete means deletion. This operation occupies redolog. The advantage is that it can be quickly restored and selected for deletion. The disadvantage is that deletion is slow. It is not recommended for large-scale deletion.
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