回答編集履歴
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answer
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@@ -1,29 +1,25 @@
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INFORMATION_SCHEMAを使うのがよいでしょうね。
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INFORMATION_SCHEMAを使うのがよいでしょうね。
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SELECT
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SELECT
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CONCAT(
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CONCAT(
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'SELECT id, Q, ', GROUP_CONCAT(COLUMN_NAME), ' FROM Quiz') AS stmt
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'SELECT id, Q, ', GROUP_CONCAT(COLUMN_NAME), ' FROM Quiz') AS stmt
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FROM
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FROM
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(SELECT
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(SELECT
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COLUMN_NAME
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COLUMN_NAME
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FROM
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FROM
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INFORMATION_SCHEMA.COLUMNS
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INFORMATION_SCHEMA.COLUMNS
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WHERE
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WHERE
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TABLE_NAME='Quiz'
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TABLE_NAME='Quiz'
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AND
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AND
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COLUMN_NAME NOT IN ('id', 'Q' )
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COLUMN_NAME NOT IN ('id', 'Q' )
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ORDER BY RAND()) AS randomCols;
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ORDER BY RAND()) AS randomCols;
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この結果はSQL文で実行するたびに異なる結果を返します。
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この結果はSQL文で実行するたびに異なる結果を返します。
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SELECT id, Q, answer,dummy4,dummy1,dummy3,dummy2 FROM Quiz
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SELECT id, Q, answer,dummy4,dummy1,dummy3,dummy2 FROM Quiz
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SELECT id, Q, dummy4,dummy3,answer,dummy2,dummy1 FROM Quiz
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SELECT id, Q, dummy4,dummy3,answer,dummy2,dummy1 FROM Quiz
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SELECT id, Q, dummy3,answer,dummy4,dummy2,dummy1 FROM Quiz
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SELECT id, Q, dummy3,answer,dummy4,dummy2,dummy1 FROM Quiz
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：
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：
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24
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29
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これでいけると思います。
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25
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これでいけると思います。
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