SAS Certified Adv Programmer 130 Questions (43)
Which one of the following SAS integrity constraint types ensures that a specific set or range of values are the only values in a variable?
A. CHECK
B. UNIQUE
C. FORMAT
D. DISTINCT
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A
check
ensures that a specific set or range of values are the only values in a column.
unique
enforces uniqueness for the values of a column
distinct
eliminate duplicate rows from your query results by using it