Access使用宏控制程序 4.常用的宏操作
宏的操作是非常丰富的,如果你只是做一个小型的数据库,程序的流程用宏就可以完全实现,而无须使用 Visual Basic 。 有的操作是没有参数的(如 Beep ),而有的操作必须指定参数才行(如 OpenForm )。通常,按参数排列顺序来设置操作的参数是很好的方法,因为选择某一参数将决定该参数后面的参数的选择。 常用宏操作 操作 说明 Beep 通过计算机的扬声器发出嘟嘟声。 Close 关闭指定的 Microsoft Access 窗口。如果没有指定窗口,则关闭活动窗口。 GoToControl 把焦点移到打开的窗体、窗体数据表、表数据表、查询数据表中当前记录的特定字段或控件上。 Maximize 放大活动窗口,使其充满 Microsoft Access 窗口。该操作可以使用户尽可能多地看到活动窗口中的对象。 Minimize 将活动窗口缩小为 Microsoft Access 窗口底部的小标题栏。 MsgBox 显示包含警告信息或其它信息的消息框。 OpenForm 打开一个窗体,并通过选择窗体的数据输入与窗口方式,来限制窗体所显示的记录。 OpenReport 在“设计”视图或打印预览中打开报表或立即打印报表。也可以限制需要在报表中打印的记录。 PrintOut 打印打开数据库中的活动对象,也可以打印数据表、报表、窗体和模块。 Quit 退出 Microsoft Access 。Quit 操作还可以指定在退出 Access 之前是否保存数据库对象。 RepaintObject 完成指定数据库对象的屏幕更新。如果没有指定数据库对象,则对活动数据库对象进行更新。更新包括对象的所有控件的所有重新计算。 Restore 将处于最大化或最小化的窗口恢复为原来的大小。 RunMacro 运行宏。该宏可以在宏组中。 SetValue 对 Microsoft Access 窗体、窗体数据表或报表上的字段、控件或属性的值进行设置。 StopMacro 停止当前正在运行的宏。

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ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters


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