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What is the Difference between count(*) and count(1) in SQL

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Question: Following are the Differences between count(*) and count(1) in SQL Answer: 1.COUNT(*) will include NULLS but it counts no.of ROWS in a TABLE, AND COUNT(column_or_expression) counts no.of NOT NULL values within a COLUMN. 2.COUNT(*) is depend on full table but COUNT(1) is depend on only one column and both are given same output.
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