One of the lesser used functions is COALESCE(), used to allow you to return one value from a list of those that are potentially NULL. This short pieces gives a few examples where this is useful?
2021-08-16
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2018-05-18
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2016-01-29
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Sandeep Mittal provides an introduction to the COALESCE function and shows how to use it.
2015-11-25
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2013-09-20
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2013-06-03
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2012-11-09
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2012-10-17
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This simple script retrieves a range of values from a table and presents the results as a string.
2008-09-15 (first published: 2008-07-16)
1,591 reads
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