A video that becomes extremely popular because of recommendations and social sharing is a ________ video

What does a primary key do?

a. Identifies each row of a table. b. Selects a number of rows from a database. c. Stores a bunch of related data. d. None of the above.

Classes and interfaces for the JDBC API can be found in which package?

a. java.jdbc. b. javax.jdbc. c. java.sql. d. java.sql.jdbc.