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"Think of a situation where null value should be allowed and a situation where it should not be allowed. What are the consequences of inappropriate null settings
NULL values cause several problems. For starters, NULL values are not the same as data values. A NULL value is basically an undefined values. On the ColdFusion end, this is not terrible as NULL values come across as empty strings (for the most part). [ But in SQL, NULL and empty string are very different and act very differently. Take the following data table for example: id name - - - - - -
- - 1 Ben 2 Jim 3 Simon 4 5 6 Ye 7 8 9 Dave 10 ]
Expert answered|papop|Points 184|
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Asked 8/21/2012 11:16:04 PM
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