Timeline for When deciding a Primary Key, can I use Date part of a DateTime field
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 11, 2014 at 5:45 | vote | accept | CAD | ||
| Jun 23, 2014 at 5:13 | comment | added | Loren Pechtel | And who says an employee can't work the same shift more than once in a day? Some disaster comes along, everyone leaves. It becomes safe again, they return. Or in a small town, there's a fire and some employees dash off to the fire station. | |
| Jun 23, 2014 at 4:46 | comment | added | Carson63000 | Well said. A primary key is there to uniquely identify a record, not to enforce a business rule. | |
| Jun 22, 2014 at 19:25 | history | answered | mjfgates | CC BY-SA 3.0 |