Using DISTINCT in SQL
8:53
YouTubeDatabase by Doug
Using DISTINCT in SQL
A brief beginner's introduction to the DISTINCT operator in SQL. DISTINCT creates a set of unique records, based on field values. In other words, duplicates records, based on field values, are removed. DISTINCT is often used with COUNT, to achieve a count of distinct values. Be aware that NULL is treated as a distinct value in terms of records ...
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