Q111 Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION?
Q111 Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)
- (A). Column positions must be used in the ORDER BY clause
- (B). Only column names from the first SELECT statement in the compound query are recognized
- (C). The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause
- (D). Each SELECT statement in the compound query must have its own ORDER BY clause
- (E). Each SELECT statement in the compound query can have its own ORDER BY clause
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