内连接和外连接是什么意思? [英] whats meant by inner join and outer join?

问题描述

我有两个桌子?
一个是螺柱，父母...
想要向父母和学生显示依赖于学生数据库中父亲的姓名...
要显示它dropdownlist

i have two tables?
one is stud, parent...
want to show parent and student to the depends on the father name in student''s database...
wanna show it dropdownlist

推荐答案

看看下面的链接以了解Joins.

使用联接

使用内部联接

使用外部联接


不确定您的确切意思是什么? -想显示它的下拉列表."

您正在使用哪种前端技术? Asp.Net，Win-Forms(.Net)还是其他?

Have a look at below links to understand Joins.

Using Joins

Using Inner Joins

Using Outer Joins


Not sure What do you mean exactly by? - "wanna show it dropdownlist."

Which Front-End Technology you are using? Asp.Net, Win-Forms(.Net) or something else?

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