| bio | website | stackoverflow.com |
|---|---|---|
| location | London, United Kingdom | |
| age | 44 | |
| visits | member for | 9 months |
| seen | yesterday | |
| stats | profile views | 5 |
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May 9 |
answered | Slow query joining on subqueries with max |
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Feb 16 |
awarded | Supporter |
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Feb 15 |
answered | Normalization of DB |
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Feb 15 |
comment |
Normalization of DB @ashofphoenix: Why do you have a separate table for user_profile? Can one login have more than one profile? |
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Feb 15 |
comment |
Normalization of DB @dev: the original version of the image can be found here: i.stack.imgur.com/k9klv.png (If you have editing privileges, you can edit the question to see the url.) |
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Aug 18 |
comment |
Database table and NULLs Nothing would stop you having a separate table, but it would be a bad choice, for a number of reasons. Assuming that all accounts could potentially be closed, but each account can only be closed once, then the AccountClosure record has the same key as the Account record - it therefore makes sense to have them on the same record. This makes it easier to write queries that require the closure date (fewer tables in such queries), fewer tables in the database schema overall (simpler maintenance) and less filespace used (account ID only stored once for each account, including closures). |
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Aug 18 |
awarded | Autobiographer |
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Aug 18 |
awarded | Teacher |
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Jan 10 |
answered | Inventory Database Design Issue |
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Jan 4 |
answered | Database table and NULLs |
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Dec 19 |
answered | Oracle sort varchar2 column with special characters last |