原文:How get the sum for every distinct value in another column?
Suppose my table contains the following: ID price ------------- 1 10 1 10 2 20 2 20 3 30 3 30 Each time through a while loop. I want to ...
Suppose my table contains the following: ID price ------------- 1 10 1 10 2 20 2 20 3 30 3 30 Each time through a while loop. I want to ...
我正在做一个安乐器,它将使用朋友名单。 我知道,你可以把一个阵列存放在我的SQL桌上,因此,我似乎不得不从我的“Users”桌上单独提出一个表格。
I have two table (question table and answer table). Question Table id question 1 what is your name? 2 how old are you? Answer Table id answer questionid 1 john 1 2 smith 1 3 ...
我想在MySQL数据库中插入时间。 在数据库中,有两处不同的日期(日期类型)和时间(时间类型)。 在我的购买力平价中添加一个记录。 但时间只加插(10:......)
I m trying to make a change this part of the sql (To_days( now( )) - TO_DAYS( o.date_payed)) days1, (To_days( now( )) - TO_DAYS( o.date_purchased)) days2, This works fine, but I m trying to make two ...
I m试图通过数量不详的参数(从1-10个),使用一个阵列编制我的声明,以便在PHP执行。
重复“<h2作风=比值:0;pa:0;>Recent comments</h2>;
How to save record lists when click save button(PHP and MSQL). Example: ID Name Sex 1 Jam m 2 Da F 3 vi F When i click save button. i would to save those records to database. ...
I need to create a bunch of feeds in a fixed width format, they re all relatively the same in layout, but they can all have different formats. For example: Field 1 can be 30 bytes wide, left ...
我有使用标准id蒸自动加固值的仪器。 我还有另一个表格,管理着目前被归类为愤怒的全球。 我认为最好使用......
我认为,我的SQL总是在这里有许多数据过程,但我已经关闭了我开始的网页。 此外,我还未在线公布这一网站,为什么在此有这么多进程,所有进程都是......。
I can t seem to get this to work, Basically, what I want to do is return all the rows in which the column timestamp is more than the variable $timestamp, and the column hit_counter is less than the ...
我为我的网站设计了一套标记系统,从一个散射线(#)起,其功能与无散射器不同。
我有两个表用户(一个)和交易(许多),我需要从用户创建到第一次交易的平均时间。 I m using AVG (TIMESTAMPDPF).
Hello all i have a quick question Is there a way i could make a php system that could read a mysql database and make multiple tables based on that and new information? So say if we implemented it ...
是否有办法回答关于MySQL服务器何时运行的低调问? 因为我无法重新启用MySQL服务器,因为经理在休假!