In SQL, what is a subquery?
A. Query to select a subset of fields in a single table
B. Query to select a subset of fields in multiple tables
C. Query language that returns a subset of data in a single table
D. A query embedded in another query
Answer:D
In SQL, what is a subquery?
A. Query to select a subset of fields in a single table B. Query to select a subset of fields in multiple tables C. Query language that returns a subset of data in a single table D. A query embedded in another query