压缩和修复数据库 看到这儿，说明你已经能够独立完成一个Access数据库了，但是在工作当中，你还需要注意一下的这些问题，这可是很容易忽略的工作。 当你的数据库在经过你简单的操作都会发生崩溃的时候，数据库可能会被破坏。为了解决这个问题我们就需要修复
压缩和修复数据库
看到这儿，说明你已经能够独立完成一个Access数据库了，但是在工作当中，你还需要注意一下的这些问题，这可是很容易忽略的工作。
当你的数据库在经过你简单的操作都会发生崩溃的时候，数据库可能会被破坏。为了解决这个问题我们就需要修复这个数据库。
修复一个数据库，首先要求在其它用户关闭这个数据库的情况下，以管理者的身份打开数据库，然后单击“工具”菜单，然后指向“数据库实用工具”，单击“压缩和修复数据库”命令。Access就会自动的完成这个修复工作。
在这个命令上，，还有一个“压缩”操作， 当我们删除窗体或报表时，ACCESS不会返回它们占用的空间，要使用这部分的空间，必须使用“压缩”操作。
转化数据库
由于不同版本的ACCESS数据库的数据结构不同，为了用不同版本的ACCESS建立的数据库在其它版本的ACCESS中，就需要将不同版本之间的数据库文件进行转化。
首先我们讲讲将旧版本的数据库转换到“Access2000”所能接收的数据库版本。单击工具栏上的“打开”按钮，选择旧的“数据库”文件，
然后单击“打开”。
单击“选项”按钮，决定是希望将数据库转换为Access2000的格式，然后单击“确定”按钮就完成了将旧版本的数据库转换为Access2000中的数据库了。
如果想把Access2000中的数据库转换成老版本的数据库，同样可以单击“工具”菜单，选择“数据库实用工具”，这样弹出一个菜单，单击菜单上的“到当前的Access数据库版本”。然后输入转换后的数据库名称和位置。完成这些后，单击“保存”按钮就可以了。
生成MDE文件
如果我们和其它人共享模块，就希望Access2000会删除可编辑的源代码。这样你的VBA程序还可以继续运行，但其他用户不能进行查看或编辑。
我们可以将这个数据库转换成“MDE”格式，这只要单击“工具”，然后选择“数据库实用工具”，然后单击“生成MDE文件”，然后选择要进行“MDE”转换的源数据库，然后单击“生成”按钮， 并为其指定位置，这时再输入“MDE”文件的名称。并单击“保存”按钮就可以了。
解决2000年问题
Access2000可以正确存储涉及到2000年以后的日期和日期函数。所以用它建立的数据库绝对不会产生2000年问题，这个问题其实在Access 7.0版本时就已经解决了，但是使用7.0以前的版本建立的数据库就会出现2000年问题。
我们可以将这些数据库载入Access2000中，将它们转换为新的数据库，就可以在2000年后继续使用它们了。
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