1z0-497: Oracle Database 12c Essentials Table Practice Questions
The free 1z0-497: Oracle Database 12c Essentials questions that deal with table, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #6
Which type of join would you use to return all rows from the left table and matched rows from the right table?
Correct answer: D
Explanation
A Left Outer Join returns all rows from the left table and matched rows from the right.
Question #10
When is a good time to use an index on a table?
Correct answer: B
Explanation
Indexes are useful for speeding up search queries on large tables.
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