Difference Between count(*), count(1), count(col), count(distinct col) | SQL Interview question

Difference Between count(*), count(1), count(col), count(distinct col) | SQL Interview question

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Oracle PL SQL interview question | Count(1) vs Count(*) vs Count(column) vs Count(Distinct Column)
Oracle PL SQL interview question | Count(1) vs Count(*) vs Count(column) vs Count(Distinct Column)
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