in lesson 5 you explained the benefitsof an update query to fix non-relational data to relational data, My question is, if the department field in the employeeTwouldn't match the exactname of the departmentT it won'tget it as a relation (Management won'tget a relation to managmnt), so changing the department field into a numericfield-type won't help for those whos spelling are spelt wrong, if so, you need to scrub them individually, what's the purpose of this update query?
You nailed it. You need to make sure your data is clean. If people are typing in values wrong, then you'll have to scrub it. A few update queries will usually catch misspellings. It's hopefully something you only have to do once. This is usually for dealing with databases that you inherit from other people or clients. YOU, of course, know how to build a relational database and will be using Autonumbers for your IDs.
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