用帝国cms建站的时候需要获取所有数据表数据的总和,但是又只能用一句mysql语句实现,下面这句很实用。红色部分是表名,下面这个是四表数据总数,根据自己的表来修改。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/13987.html
SELECT COUNT(AA.id) FROM (SELECT id FROM www_moban5_cn_ecms_news UNION ALL SELECT id FROM www_moban5_cn_ecms_xiazai UNION ALL SELECT id FROM www_moban5_cn_ecms_photo UNION ALL SELECT id FROM www_moban5_cn_ecms_download) AA;文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/13987.html
上面语句在帝国cms后台无法使用,需要做一下修改。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/13987.html
SELECT COUNT(AA.id) as total FROM (SELECT id FROM www_moban5_cn_ecms_news UNION ALL SELECT id FROM www_moban5_cn_ecms_xiazai UNION ALL SELECT id FROM www_moban5_cn_ecms_photo UNION ALL SELECT id FROM www_moban5_cn_ecms_download) AA;文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/13987.html
是不是很简单,赶紧收藏起来吧。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/13987.html