How to delete a unique primary key index in Oracle?

To remove the unique primary key index of an Oracle table, you can use the DROP CONSTRAINT clause of the ALTER TABLE statement. Here are the steps to delete the unique primary key index: 1. First, use the following command to view the index information of the table:

  SELECT index_name, constraint_name
  FROM all_indexes
  WHERE table_name = 'your_table_name';

This will return the index name and constraint name of the table. Then run the following command again to delete the unique primary key index.

  ALTER TABLE your_table_name
  DROP CONSTRAINT constraint_name;

Replace your_table_name with the name of the table from which you want to delete the index, and replace constraint_name with the name of the constraint of the index you want to delete. Note: Deleting a unique primary key index may compromise data integrity, so make sure you know what you’re doing and backup your data as needed before performing the deletion operation.