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

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

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Difference Between count(*) ,count(0),count(-1),count(col),count('youtube') | SQL Interview question
Difference Between count(*) ,count(0),count(-1),count(col),count('youtube') | SQL Interview question
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Difference Between count(*) ,count(0),count(-1),count(col),count('youtube') | SQL Interview question

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#sql Interview Question - What is the difference between COUNT(*), COUNT(1) and COUNT(-1)