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Posts: 38
2 days ago
When redesigning a database, how can we check assumptions about functional dependencies?
Source  Download Study Guide
Database Processing: Fundamentals, Design, and Implementation
Edition: 15th
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wrote...
2 days ago
There are two related SQL techniques that we can use to check assumptions about functional dependencies in an existing database. The first is to use a correlated subquery with the SQL IN keyword, and the second is to use a correlated subquery structure using the SQL EXISTS and/or NOT EXISTS keywords.
wrote...
2 days ago
Appreciate the effort, thank you!
wrote...
2 days ago
You're very welcome ... please mark the topic solved when you get a chance
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