- A pk is *both* a physical and a logical object.
- Internet: request + transport = invariant
- Some really confusing things about parent-child relationship
- standard and easy way to do schema design
- Weak entity types
- Last message date: Wed Aug 15 2007 - 23:59:20 CEST
- Archived on: Sun Jun 26 2016 - 22:25:43 CEST
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