Certain types of subqueries are also known as ____ because they join without returning values from the subquery.
A) inner joins
B) outer joins
C) semi-joins
D) cross join
Correct Answer:
Verified
Q34: _ queries simply retrieve rows.
A) Basic
B) Filtered
C)
Q35: AND has higher precedence than NOT,followed by
Q36: AS is often used to check membership
Q37: EXISTS is sometimes faster than IN.
Q38: The difference between EXISTS and IN is
Q40: Subqueries can be nested within subqueries.
Q41: Queries can be summarized or aggregated into
Q42: The _ SQL group function counts the
Q43: The following query returns a single number
Q44: Comparison of a NULL value to any
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