Further, they point out that these pop-up businesses are powered by whatâs becoming known as âgig workersâ â a term borrowed from the music industry, where musicians move from job to job (gig to gig), employed for a particular performance or a defined time, with little more connection to the venue than to the fast food theyâre eating for lunch.
Answer: B. Multiple-row subqueries return more than one row of results.Operators that can be used with multiple-row subqueries include IN, ALL, ANY, and EXISTS.The multi row operators IN, ANY, ALL must be used with single row operators as shown in the option B.
1 Expressions -- in the SELECT clause and WHERE clause. 2  Joining Tables -- in the FROM clause. 3  Subqueries -- embedding a query in another. 4  Grouping Queries -- using the GROUP BY clause and HAVING clause. 5  Aggregate Queries -- using Set Functions and the HAVING clause. 6  Union Queries -- using the query operator, UNION.