SQL Interview Question – Difference between Count(*), Count(1), Count(colname) Which is fastest

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SQL Interview Question - Difference between Count(*), Count(1), Count(colname) Which is fastest
SQL Interview Question – Difference between Count(*), Count(1), Count(colname) Which is fastest
This tutorial discusses the difference between Count(*), count(1) and count(colname) in SQL and explains which of them is the fastest

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