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我有這個表(MySQL的):如何用max和min搜索mysql兩個字段?
|id|min|max|info|
+--+---+---+----+
|1 |18 |24 | ...|
+--+---+---+----+
|2 |22 |26 | ...|
SQL:
SELECT * FROM myTable WHERE max <= 21 AND min >= 21
結果:
NULL
解決方案:
SELECT * FROM myTable WHERE 21 <= max AND 21 >= min
問題是什麼? –