Question

Select the following key words that are supported in MySQL. Select all (if any) that apply.

A.INTERSECT
B.None of These
C.UNION
D.JOIN
E.All of These
F.MINUS

Answer 1

The keywords supported by MySQL from the given options are UNION and JOIN. UNION combines results from multiple SELECT statements, while JOIN combines rows from multiple tables. INTERSECT and MINUS are not supported by MySQL.

Step-by-step explanation:

The question at hand involves identifying which keywords are supported in MySQL among the options provided. MySQL is a widely-used relational database management system that supports a certain set of commands for manipulating and retrieving data stored in databases.

The correct keywords supported by MySQL from the options given are:

• C.UNION
• D.JOIN

The UNION operator is used to combine the result set of two or more SELECT statements. It essentially 'unifies' the results while removing duplicate rows. On the other hand, JOIN is used to combine rows from two or more tables, based on a related column between them.

The options A. INTERSECT and F. MINUS are not supported in MySQL. Both INTERSECT and MINUS are set operations that are available in other SQL databases but not in MySQL. In MySQL, alternative queries using JOINs or subqueries are usually used to achieve similar results as INTERSECT and MINUS.