Q13. Which is the default column or columns for sorting output from compound queries using SET operators such as intersect In a SQL statement?

Q13. Which is the default column or columns for sorting output from compound queries using SET operators such as intersect In a SQL statement?

  • (A). the first column in the first select of the compound query
  • (B). the first varchab2 column in the first select of the compound query
  • (C). the first number column in the first select of the compound query
  • (D). the first number or varchar2 column in the last select of the compound query
  • (E). the first column in the last select of the compound query
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