SQL

1. A table may have no more than 3 primary keys.

TRUE

FALSE

2. Data are moved between disk storage and main memory

A. As needed

B. Specifically in 10 minute intervals

C.Only when the Random Access Memory (RAM) is full

D. NEVER

3. In transaction management, _______ is the requirement that operation executes fully or not at all; _________________is the requirement that operations are executed correctly, according to the schema; _________________ is the requirement that new values persist, despite possible system failures.

4. The NULL value can be interchanged with a value of zero since null and zero are synonyms in the English language.

TRUE

FALSE