Web development quizzes

A BLOB stands for Binary Large Object.
False
True

A SELECT statement is a data definition language (DDL).
False
True

This query is correct: SELECT column1 FROM table1 UNION SELECT column2 FROM table2;
False
True

A primary key column can contain NULL values.
False
True

This query copies data from table2 to table1: INSERT INTO table2 SELECT * FROM table1;
False
True