傳統寫法php
limit 偏移量,取出條數mysql
SELECT * FROM yundou_management.service_order where order_status=1 order by id asc limit 108,8 ;
mysql5以後支持新寫法,讓人更容易理解sql
limit 取出條數 offset 偏移量ide
SELECT * FROM yundou_management.service_order where order_status=1 order by id asc limit 8 offset 108 ;
假如從第一條開始獲取指定條數量,偏移量爲0優化
SELECT * FROM yundou_management.service_order where order_status=1 order by id asc limit 0,8 ; SELECT * FROM yundou_management.service_order where order_status=1 order by id asc limit 8 offset 0 ;
也能夠簡寫成以下code
SELECT * FROM yundou_management.service_order where order_status=1 order by id asc limit 8;
隨着偏移量愈來愈大,查詢速度會愈來愈慢,解決方案在以前的文章已經介紹過。
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參考:mysql量級數據表的分頁優化方案get