如何绘制图表以及在现场显示多少 [英] how can chart and how much in field

问题描述

大家好
我有一个具有某些字段的数据库，我想计算一个字段中有多少数据是A，而b和b是多少...
意思是我想聊天，显示10％是a，18％是b，并且...
我该怎么办
我使用mysql，php和vb.net

hi everyone
i have database that have some field i wanna calcute how much of data in one fiels is A and how much is b and ...
mean i wanna have chat that show 10 % is a and 18% is b and ...
how can i do this
i use mysql and php and vb.net

推荐答案

如何使用PHP和VB.NET?有免费的图表库，但是听起来像是我在问如何编写基本的SQL.使用选择计数"获取每种类型的字段的计数以及总计，以得出％

How are you using PHP AND VB.NET ? There are free charting libraries, but it sounds to me like you''re asking how to write basic SQL. Use ''Select count'' to get the count of each type of field, and a total, to derive a %

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