| | |
|---|
| | | ( |
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| | | SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 0 ORDER BY RAND( ) LIMIT 70 ) a UNION ALL |
|---|
| | | SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 1 ORDER BY RAND( ) LIMIT 10 ) b UNION ALL |
|---|
| | | SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 2 ORDER BY RAND( ) LIMIT 20 ) c UNION ALL |
|---|
| | | SELECT * FROM ( SELECT * FROM exam_subject_choices WHERE choices_type = 2 ORDER BY RAND( ) LIMIT 20 ) c |
|---|
| | | ) esc |
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| | | LEFT JOIN exam_subject_option eso ON esc.id = eso.subject_choices_id |
|---|
| | | </select> |
|---|
