⟩ What is sql Intersect?
Intersect is the product of two tables listing only the matching rows.
Intersect is the product of two tables listing only the matching rows.
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?
What is the default ordering of an ORDER BY clause in a SELECT statement?
You are joining a local and a remote table, the network manager complains about the traffic involved, how can you reduce the network traffic?