SQL queries useful to check if Table exists or not in Oracle database., You can try these queries in SQL developer to know if Table is created by DBA or database administrator.
The COMMIT, ROLLBACK and Transaction are very important in terms of SQL. When you are a Oracle SQL developer you need to work with SQL developer always. Read more.
Oracle interview question on shared pool: The shared pool is one of the most critical memory components particularly when it comes to how SQL executes.
Top ideas you need to migrate your Oracle to DB2 database.