How to reduce the size of the table in oracle.

There is no function that will allow you to reduce the size of the tablespace.

Reducing the size of the undo tablespace is the best way to free up space.

Drop the old tablespace and create a new one with less space.

1.You will need to modify the script to use less space.

3.If you don't set the new Undo tablespace as default, you will not be able to remove the first.

6.You can use the generated database to create the new tablespace.You need to change the script to set the size correctly.

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