24 lines
544 B
Text
24 lines
544 B
Text
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SELECT *
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FROM (
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SELECT
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posts.col1 AS emp_id,
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posts.col2 AS dept_id,
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posts.col3 AS posts,
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DENSE_RANK() OVER post_ranking AS rank
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FROM VALUES
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(1, 1 ,100),
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(2, 1 ,50),
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(8, 1 ,250),
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(3, 2 ,200),
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(4, 2 ,300),
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(9, 2 ,1000),
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(5, 3 ,300),
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(6, 3 ,100),
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(7, 3 ,400) AS posts
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WINDOW post_ranking AS (
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PARTITION BY posts.col2
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ORDER BY posts.col3 DESC
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ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
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)
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WHERE rank <= 2;
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