In this video we see how to find duplicate records using COUNT and HAVING in SQL.
By using the COUNT function in the HAVING clause to check if any of the groups have more than 1 entry, those would be the duplicate values.
Using COUNT and HAVING is one of the easiest method to find duplicate values in SQL.
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Негізгі бет SQL | Find duplicate records in table using COUNT and HAVING |Simple method to find duplicate record
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