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NULL Values in SQL
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00:00 Introduction
00:39 Sample Data
00:43 How to Test for NULL
01:44 How NOT to Test for NULL
02:07 NULL in DISTINCT, and Aggregates
04:10 3-Valued Logic
04:20 "Accept True" & Unknown
05:04 Equal or Not Equal NULL gives UNKNOWN
05:59 WHERE & HAVING treat Unknown as False
06:06 Recap - 5 Takeaways
06:59 The End
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