Home > SQL Challenge > How would a null value in a lookup table hurt you?

How would a null value in a lookup table hurt you?

How would a null value for ID zero hurt you?

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Here is an example

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I suggested that we update the null value to N/A. A co-worker, a very experienced Data Analyst responded this way:

I can go either way.  This is a typical condition in Asset Manager so I’ve tried to “armor” my code with outer joins and isnulls.

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