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When must you use a Type I nested query in an UPDATE or DELETE statement?1 pointA non target table has row conditions.A non target table has combined primary key.A non target table has an optional foreign key.A non target table provides columns for the UPDATE statement.14.Question 14Indicate reasons for using a nested query in the FROM clause. Multiple answers are possible.1 pointto compute a nested aggregate function, an aggregate function within an aggregate function.to compute independent aggregate functions involving different tablesto demonstrate query formulation ability to colleaguesto simplify some complex decision making queries involving many tables and aggregate functions

Question

When must you use a Type I nested query in an UPDATE or DELETE statement?1 pointA non target table has row conditions.A non target table has combined primary key.A non target table has an optional foreign key.A non target table provides columns for the UPDATE statement.14.Question 14Indicate reasons for using a nested query in the FROM clause. Multiple answers are possible.1 pointto compute a nested aggregate function, an aggregate function within an aggregate function.to compute independent aggregate functions involving different tablesto demonstrate query formulation ability to colleaguesto simplify some complex decision making queries involving many tables and aggregate functions

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Solution

You must use a Type I nested query in an UPDATE or DELETE statement when a non-target table provides columns for the UPDATE statement.

Reasons for using a nested query in the FROM clause include:

  1. To compute a nested aggregate function, an aggregate function within an aggregate function.
  2. To compute independent aggregate functions involving different tables.
  3. To simplify some complex decision-making queries involving many tables and aggregate functions.

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