OraclePLSQL-Page4

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👉Alter table Command

The structure of a table can be modified using the ALTER command.

Alter table works by making a temporary copy of the original table, the alteration is performed on the copy, then the original table is deleted and the new one is renamed.

👉Renaming Tables

👉Truncating Tables

Truncate table empties a table completely.
Truncate operations drop and re-create the table, which is much faster than deleting rows one by one.

👉Destroying Tables

Drop table statement with the table name can destroy a specific table.


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