order by id desc limit
No, you shouldn't do this. Without an ORDER BY clause you shouldn't rely on the order of the results being the same from query to query.,SELECT * FROM articles WHERE category_id = 123 ORDER BY id LIMIT 50, 10 ... 1) AS t2 WHERE t1.id <= t2.id ORDER BY t1.id desc LIMIT $pagesize;. , The problem was a missing comma after the first DESC, the correct statement is. SELECT Position INTO lastPosition FROM ranking ORDER BY ...,Use a subquery to get ascending order: SELECT t.done_sum FROM ( SELECT done_sum, id FROM spent_vs_done WHERE project_id="14" ORDER BY id ... , 做「where」＋「order」+ 「limit」. Notification.where(user: current_user).where(read_at_unixtimestamp: nil).order(id: :desc).limit(1). 一樣吃到index, ..., Try this $prevquery = "SELECT * FROM $tbl_name WHERE ID < '$ID' ORDER BY ID DESC limit 1";. If this does not work then echo the query ..., I suppose you have an index on your CallStarted column and ID is the primary key. Your first query can do a so-called range scan on that index, ..., select * from tb_shop id order by id desc limit 0,1. 03-07 阅读数 6843 · orderbyiddesc是按id进行降序排列limit0,1是只取记录中的第一条.所以这条 ...,ASC is ascending order and DESC is descending order. It specifies a limited number of rows in the result set to be returned based on number_rows. For example, LIMIT 10 would return the first 10 rows matching the SELECT criteria. This is where sort order m, 假設, 我們有個Table 叫test , 有20 萬筆記錄, test 有20 個欄位好了 , 其中有一個欄位post_time 有建立索引可以排序用的, 而有個主鍵id. 下一道指令
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 order by id desc limit 相關參考資料
MySQL limit from descending order - Stack Overflow
No, you shouldn't do this. Without an ORDER BY clause you shouldn't rely on the order of the results being the same from query to query. https://stackoverflow.com MYSQL LIMIT 用法 - 菜鸟教程
SELECT * FROM articles WHERE category_id = 123 ORDER BY id LIMIT 50, 10 ... 1) AS t2 WHERE t1.id <= t2.id ORDER BY t1.id desc LIMIT $pagesize;. http://www.runoob.com ORDER BY ASC DESC & LIMIT - Stack Overflow
The problem was a missing comma after the first DESC, the correct statement is. SELECT Position INTO lastPosition FROM ranking ORDER BY ... https://stackoverflow.com ORDER BY id DESC LIMIT 3 - Stack Overflow
Use a subquery to get ascending order: SELECT t.done_sum FROM ( SELECT done_sum, id FROM spent_vs_done WHERE project_id="14" ORDER BY id ... https://stackoverflow.com PostgreSQL Poor performance ORDER BY LIMIT - Nic Lin's ...
做「where」＋「order」+ 「limit」. Notification.where(user: current_user).where(read_at_unixtimestamp: nil).order(id: :desc).limit(1). 一樣吃到index, ... https://blog.niclin.tw Right syntax to use near order by id desc limit 1 - Stack Overflow
Try this $prevquery = "SELECT * FROM $tbl_name WHERE ID < '$ID' ORDER BY ID DESC limit 1";. If this does not work then echo the query ... https://stackoverflow.com Select order by desc limit query speed - Stack Overflow
I suppose you have an index on your CallStarted column and ID is the primary key. Your first query can do a so-called range scan on that index, ... https://stackoverflow.com sql order by,desc和limit使用(mysql) - Terry__Back的博客 ...
select * from tb_shop id order by id desc limit 0,1. 03-07 阅读数 6843 · orderbyiddesc是按id进行降序排列limit0,1是只取记录中的第一条.所以这条 ... https://blog.csdn.net SQL: SELECT LIMIT Statement - TechOnTheNet
ASC is ascending order and DESC is descending order. It specifies a limited number of rows in the result set to be returned based on number_rows. For example, LIMIT 10 would return the first 10 rows m... https://www.techonthenet.com 善用sub query 優化order by limit | 壞蛋的密室
假設, 我們有個Table 叫test , 有20 萬筆記錄, test 有20 個欄位好了 , 其中有一個欄位post_time 有建立索引可以排序用的, 而有個主鍵id. 下一道指令 https://www.pigo.idv.tw |