0
當我在mySQL數據庫中對varchar列使用group by。group by not filter result in capital letter
結果未正確過濾該查詢以小寫字母或大寫字母形式表示所有值。
E.g. 「test」和「TEST」在單行中合併。
A
回答
1
您可以隨時將列轉換爲GROUP BY中的二進制。
SELECT columnName
FROM tableName
GROUP BY CAST(columnName as BINARY)
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