Check if table is compressed using Oracle.
You can use the following SQL statement in Oracle database to check if a table is compressed:
SELECT table_name, compression FROM all_tables WHERE table_name = 'your_table_name';
Replace “your_table_name” with the name of the table you want to query.
If the “compression” column in the query result shows “ENABLED”, then the table is compressed; if it shows “DISABLED”, then the table is not compressed.