Timeline for SQL: empty string vs NULL value
Current License: CC BY-SA 2.5
2 events
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| Mar 15, 2013 at 5:24 | comment | added | jmoreno | Even with the best intent in the world, validation may not solve this problem -- he may still have to use a method dealing with rows where all columns must be supplied with some kind of value. In that case, the question will remain -- what value to use when there is no value? And the answer will of course be: the value that indicates no value. In DBs this commonly NULL. | |
| Dec 30, 2010 at 14:49 | history | answered | Steven A. Lowe | CC BY-SA 2.5 |