Write a query that Balance of each CUSTOMER who have made purchase(s) before AND subtotal that each customer purchased. So that we can find the ENDING balance. Output: CUS_CODE SUBTOTAL CUS_BALANCE ENDING_BALANCE 10010 0 0 0 10011 444.15 0 444.15 10012 154 346 500 10013 0 537 537 10014 422.87 0 422.87 10015 34.99 0 34.99 10016 0 221 221 10017 0 769 769 10018 70.44 217 287.44 10019 0 0 0
Write a query that Balance of each CUSTOMER who have made purchase(s) before AND subtotal that each customer purchased. So that we can find the ENDING balance. Output: CUS_CODE SUBTOTAL CUS_BALANCE ENDING_BALANCE 10010 0 0 0 10011 444.15 0 444.15 10012 154 346 500 10013 0 537 537 10014 422.87 0 422.87 10015 34.99 0 34.99 10016 0 221 221 10017 0 769 769 10018 70.44 217 287.44 10019 0 0 0
Chapter5: Multiple-table Queries
Section: Chapter Questions
Problem 7CAT: Repeat Exercise 6, but this time use the EXISTS operator in your query.
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Question
Write a query that Balance of each CUSTOMER who have made purchase(s) before AND subtotal that each customer purchased. So that we can find the ENDING balance.
Output:
CUS_CODE | SUBTOTAL | CUS_BALANCE | ENDING_BALANCE |
10010 | 0 | 0 | 0 |
10011 | 444.15 | 0 | 444.15 |
10012 | 154 | 346 | 500 |
10013 | 0 | 537 | 537 |
10014 | 422.87 | 0 | 422.87 |
10015 | 34.99 | 0 | 34.99 |
10016 | 0 | 221 | 221 |
10017 | 0 | 769 | 769 |
10018 | 70.44 | 217 | 287.44 |
10019 | 0 | 0 | 0 |
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