Explanation:* is used to select all values including null. 5. A Boolean data type that can take values true, false, and________ .
A. 1
B. 0
C. Null
D. Unknown
Answer:A
Explanation:* is used to select all values including null. 5. A Boolean data type that can take values true, false, and________ .
A. 1 B. 0 C. Null D. Unknown
Explanation:Unknown values do not take null value but it is not known. 6. The ____ connective tests for set membership, where the set is a collection of values produced by a select clause. The ____ connective tests for the absence of set membership.