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Tip of the Day
Language: Enterprise
Expertise: Beginner
Jun 26, 2001



Application Security Testing: An Integral Part of DevOps

The Difference between 'Count' and 'Count(*)'

'Count': Counts the number of non-null values.

'Count(*)': Counts the number of rows in the table, including null values and duplicates.
Mahyar Ghasemali
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