⟩ What is SQL Rollback?
Rollback causes work in the current transaction to be undone.
Rollback causes work in the current transaction to be undone.
How can you call a PL/SQL procedure from SQL?
You want to use SQL to build SQL, what is this called and give an example?
What is a Cartesian product?
How do you execute a host operating system command from within SQL?
How can variables be passed to a SQL routine?
What SQLPlus command is used to format output from a select?
What special Oracle feature allows you to specify how the cost based system treats a SQL statement?
ou want to group the following set of select returns, what can you group on? Max(sum_of_cost), min(sum_of_cost), count(item_no), item_no?
What is tkprof and how is it used?
What is explain plan and how is it used?