Oracle
1Z0-082 · Question #70
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.)
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SQL and PL/SQL
Question
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.)
Options
- AColumn positions must be used in the ORDER BY clause
- BOnly column names from the first SELECT statement in the compound query are recognized
- CThe first column in the first SELECT of the compound query with the UNION operator is used by
- DEach SELECT statement in the compound query must have its own ORDER BY clause
- EEach SELECT statement in the compound query can have its own ORDER BY clause
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Topics
#ORDER BY#UNION operator#compound query#set operator column reference