记录一个mysql的case when用法
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SELECT wle.*, CASEWHEN '2017-08-10 14:00:00' > wle.et THEN '回看'WHEN wle.st >= '2017-08-10 14:00:00' AND '2017-08-10 14:00:00' < wle.et THEN '直播中'WHEN wle.st > '2017-08-10 14:00:00' < wle.et AND (wles.statusx IS NULL OR wles.statusx != '1') THEN '预约'WHEN wle.st >'2017-08-10 14:00:00' < wle.et AND wles.statusx = '1' THEN '巳预约'END statusxFROM wsp_live_epg wle LEFT JOIN wsp_live_epg_subscribe wles ON (wle.id = wles.epg_id AND wles.user_id = '5l3y7yJwUpN4pdtjCFZYBpYFOt54Hfpz')WHERE wle.live_tv_id = 9AND wle.dt = '2017-08-10'
