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Oracle PL/SQL and SQL Fundamentals

Question 1 of 20

Suppose in the declaration section of a PL/SQL block, you create but do not initialize a NUMBER variable. What will be the initial value of the variable when the block is executed?

  1. 0
  2. NULL
  3. Depends on the scale and precision of the datatype.
  4. Without initialization, a variable cannot be used in the executable section of the block.

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