How to Create Temporary Tables in Oracle

You can create a temporary table in an Oracle database by following these steps:

1. Create a temporary table using the CREATE GLOBAL TEMPORARY TABLE statement. For example:

CREATE GLOBAL TEMPORARY TABLE temp_table (
  id NUMBER,
  name VARCHAR2(50)
) ON COMMIT DELETE ROWS;

1. The option ON COMMIT DELETE ROWS in the CREATE GLOBAL TEMPORARY TABLE statement means that data in the temporary table will be deleted when the session is committed.
2. You can use statements like INSERT, UPDATE, DELETE, etc. to operate on temporary tables just like regular tables.
3. At the end of the conversation, the data in the temporary table will be automatically deleted, no manual data clearing is needed.
4. The same temporary table can be used multiple times in a conversation, and its data will be cleared each time it is used.

Please note that the data in temporary tables is only visible at the session level and cannot be seen by other sessions or users.