Access入门教程 15.2 为什么要用宏
先看个例子,有这样一个窗体,上面有一个数据表。现在在这个数据表中添加一个功能,用一个文本框输入要查询的内容,而用一个查询按钮来完成查询的工作,并将查询后的数据打印在报表上。 在窗体那一课里讲的命令按钮向导就能实现这个功能,但对于每个控件来说
先看个例子,有这样一个窗体,上面有一个数据表。现在在这个数据表中添加一个功能,用一个文本框输入要查询的内容,而用一个"查询"按钮来完成查询的工作,并将查询后的数据打印在报表上。
在窗体那一课里讲的命令按钮向导就能实现这个功能,但对于每个控件来说,要实现相应的功能光凭借向导是远远不够的。
要让这些控件实现一定的功用,在ACCESS中有四种办法。当然最简单的就是使用控件向导了,除此之外还有"宏"、"VBA"和"SQL语言",使用这些方法可以使控件完成几乎所有的数据库操作。而这其中,向导最简单,但实现的功能有限,而宏虽然只有53种基本操作,但可以组合成很多种宏组命令,这样就能实现很多ACCESS中有关窗体、报表、查询的功能,使用起来也非常方便。而VBA和SQL语言相对起来对用户的要求也要高一些,当然VBA和SQL语言可以实现的功能也更加全面,自主性也更强,但它们都要写程序。对于很多普通的用户,他们不要求会得太多,只要能完成手上的工作就可以了,所以这时使用宏就是他们最好的选择了。
使用宏非常方便,不需要记住各种语法,也不需要编程,只需利用几个简单宏操作就可以对数据库完成一系列的操作,中间过程完全是自动的。

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