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select count(*) vs select count(1) 0:56

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SQL : Why COUNT(*) of multiple rows of SELECT 1 is always 1? 1:01

SQL Interview Scenario | Difference Between Count(*),Count(1),Count(Col_Nm) 2:45

Databases: Why does `SELECT count(\\*)` return 1? 2:28

Difference Between COUNT(*), COUNT(1) and COUNT(column_name) In SQL | Important SQL Interview quest 5:21

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SQL Tutorial : Difference Between Count(1) and Count(*) in SQL Oracle 6:43

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COUNT(*) and COUNT(1): Performance Battle - SQL in Sixty Seconds 176 2:55

\"select count(1)\" performance in a CTE (3 Solutions!!) 4:14

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