|  | @@ -61,7 +61,7 @@
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				|  |  |      <select id="queryBySheetIdAndCourseId" resultMap="CourseScheduleStudentMusicSheetResult">
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				|  |  |          SELECT cssm.*,ms.music_sheet_name_ ,
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				|  |  |          CASE WHEN ms.audio_file_url_ IS NOT NULL AND ms.audio_file_url_ != '' THEN ms.audio_file_url_
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				|  |  | -        WHEN ms.metronome_url_ IS NOT NULL AND ms.metronome_url_ != '' THEN ms.metronome_url_ ELSE ms.url_ END AS url
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				|  |  | +        WHEN ms.metronome_url_ IS NOT NULL AND ms.metronome_url_ != '' THEN ms.metronome_url_ ELSE ms.url_ END AS url,msa.audio_file_url_
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				|  |  |          FROM course_schedule_student_music_sheet cssm
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				|  |  |          LEFT JOIN music_sheet_accompaniment msa ON cssm.music_sheet_accompaniment_id_ = msa.id_
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				|  |  |          LEFT JOIN music_sheet ms ON ms.id_ = msa.music_sheet_id_
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