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26. Identify the lowest level format to which the computer converts a program in a higher language before execution.
A. English code
B. Machine code
C. Assembly language
D. System language
Ans. B
27. Constraints cannot be exported through EXPORT command
A. True
B. False
Ans. B
28. A Transaction ends
A. Only when it is Committed
B. Only when it is Rolledback
C. When it is Committed or Rollback
D. None of the above
Ans. C
29. A_____ is a query that retrieves rows from more than one table or view:
A. Start
B. End
C. Join
D. All of the mentioned
Ans. C
30. Which join refers to join records from the write table that have no matching key in the left table are include in the result set:
A. Left outer join
B. Right outer join
C. Full outer join
D. Half outer join
Ans. B