PL/SQL provides many powerful functions to help you manipulate data. These built-in functions fall into which of these following categories?

PL/SQL provides many powerful functions to help you manipulate data. These built-in functions fall into which of these following categories?
All Options are Correct
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Select
Begin
Start

Which of the following is an explicit numeric, character, string, or BOOLEAN value not represented by an identifier?

Which of the following is an explicit numeric, character, string, or BOOLEAN value not represented by an identifier?
Number,Date,Object reference
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Error reporting,Character, Datatype conversion
Miscellaneous
None of the above

Which of the following results are true, when a ROLLBACK statement is issued to the database, the transaction has ended?

Which of the following results are true, when a ROLLBACK statement is issued to the database, the transaction has ended?
C. Both A & B
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A. Operands
B. Operators
None of the above
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