Question

我有这样的查询：

SELECT id FROM my_table
  WHERE ip IN (SELECT ip FROM my_table WHERE id IN (1, 2, 3, 4))
  GROUP BY id
  HAVING SUM(count) >= 10

而不是硬编码要求sum（count）＆gt; = 10，我希望它是sum（count）是＆gt; =该id的count列的总和的10％（即没有“WHERE ip IN ...”约束）

在这样的查询中是否可以这样做？

Answer 1

您可以编写子查询来获得10％：

SELECT id FROM my_table
WHERE ip IN (SELECT ip FROM my_table WHERE id IN (1, 2, 3, 4))
GROUP BY id
HAVING SUM(count) >= (SELECT 0.1 * SUM(t.count) FROM my_table t WHERE t.id = my_table.id)

SQLite - 根据总数的百分比进行选择

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