How does Hive determine if a table exists and then delete it?

In Hive, you can use the following statement to check if a table exists and delete it:

DROP TABLE IF EXISTS table_name;

This statement will first check if the table exists, and if it does, it will delete the table. If it doesn’t exist, it will do nothing. By using the IF EXISTS keyword, you can avoid errors that may occur when trying to delete a table that doesn’t exist.