feat: succesfully complete all challenges #55
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Completed all assigned challenges, addressing the required tasks. All solutions are working
ERD design already done for the laast challenge
fabio248
reviewed
Dec 5, 2024
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In this exercise at the begging said In this part, you need to CRATE A TRANSACTION with the following steps, so that means all the following items should be within a transaction. With that in mind the solution for e and f literals will change.
src/answers.sql
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| --(d). Put your answer here if the transaction fails(YES/NO): Yes the is failed cuz the mount is higher than the current balance | ||
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| --(e and f). If the transaction fails, make the correction on step c to avoid the failure (the way to avoid the failure is tranfer less money than the current balance) |
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The solution will change based on my comment to wrap the whole exercise in a transaction.
src/answers.sql
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| SUM( | ||
| CASE | ||
| WHEN m.account_from = a.id THEN -m.mount | ||
| WHEN m.account_to = a.id THEN m.mount | ||
| END | ||
| )AS total_money |
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You have to do the same query several times. Remember do not repeat yourself.
-problems with the comments lenguage -same query several times -confusion with the exercise ravnhq#4
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Completed all assigned challenges, addressing the required tasks. All solutions are working