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Updating Rows in varray - Exercise

Updating rows in a varray


Updating rows within a nested table and a varray


Objective: Build update commands for a nested table and a varray.

Exercise scoring

This exercise is worth 10 points.

Background


In this exercise, you are required to write two UPDATE statements, one each for updating a nested table and a varray. The first statement will update the data within the CUSTOMER_OBJ_TABLE table. The second statement will update the data within the SALE_HEADER table.

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Instructions

  1. With SQL*Plus, connect to the database by using PETSTORE as the username, GREATPETS as the password, and MYDB as the host string.
  2. For the first UPDATE statement, build a statement to update a record from the CUSTOMER_OBJ_TABLE table, where the ID is 29 and the new values for the varray are 1-800-444-5623 and 1-310-345-8899.
  3. For the second UPDATE statement, build a statement to update a record from the SALE_HEADER table, where the ID is 34 and detail_amount within the nested table is 3.50. The item quantity must be set to 453.

Now answer this:

Please answer the following questions in the text box below to submit your answers to the tutor.
  1. Is it possible to correct the existing data within a varray?
  2. How would you write a single UPDATE statement that updates all the records within a detail table?

Hints


Use the SET and WHERE clauses.

Submitting your exercise

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