How do you purge a table?

How do you purge a table?

Let’s look at how to use the PURGE option with the DROP TABLE statement in Oracle. When issuing a DROP TABLE statement in Oracle, you can specify the PURGE option. The PURGE option will purge the table and its dependent objects so that they do not appear in the recycle bin.

What is purge in DROP TABLE?

Use the PURGE statement to remove a table or index from your recycle bin and release all of the space associated with the object, or to remove the entire recycle bin, or to remove part of all of a dropped tablespace from the recycle bin.

How do you do a flashback DROP TABLE?

To perform the Flashback Drop operation:

1. Connect SQL*Plus to the hr schema and obtain the name of the dropped table in the recycle bin.
2. Retrieve the dropped table using the FLASHBACK TABLE …
3. If the retrieved table had referential constraints before it was placed in the recycle bin, then re-create them.

How do you purge a table in SQL?

TRUNCATE TABLE removes all rows from a table, but the table structure and its columns, constraints, indexes, and so on remain. To remove the table definition in addition to its data, use the DROP TABLE statement.

How to purge an already dropped table in Oracle?

If more than one version of test resides in the recycle bin, Oracle Database removes the version that has been there the longest: To determine system-generated name of the table you want removed from your recycle bin, issue a SELECT statement on your recycle bin.

When do you Drop a partitioned table with the purge keyword?

When you drop a partitioned table with the PURGE keyword, the statement executes as a series of subtransactions, each of which drops a subset of partitions or subpartitions and their metadata.

How to drop a table from the database?

To move a table to the recycle bin or remove it entirely from the database, you use the DROP TABLE statement: First, indicate the table and its schema that you want to drop after the DROP TABLE clause. If you don’t specify the schema name explicitly, the statement assumes that you are removing the table from your own schema.

What happens in a DROP TABLE statement in Oracle?

When issuing a DROP TABLE statement in Oracle, you can specify the PURGE option. The PURGE option will purge the table and its dependent objects so that they do not appear in the recycle bin. The risk of specifying the PURGE option is that you will not be able to recover the table.