Microsoft Access 数据库常规规格
Microsoft Access 数据库常规规格
Microsoft Access 数据库 (.mdb) 文件大小2 G 字节。不过，由于数据库可以包括其他文件中的链接表，所以它的大小仅实际上只受可用存储空间大小的限制。数据库中的对象个数32,768
模块（包括 HasModule 属性为 True 的窗体和报表）1,000
对象名称的字符数64
密码的字符个数14
用户名或组名的字符个数20
用户个数255
Microsoft Access 数据库表规格
表名的字符个数64
字段名的字符个数64
表中字段个数255
打开表的个数2,048。实际可打开的表的数目可能会少一些，因为 Microsoft Access
还要打开一些内部的表。
表的大小1G 字节
文本字段的字符个数255
备注字段的字符个数通过用户界面输入为 65,535，通过程序输入为 1G 字节。
OLE 对象字段的大小1G 字节
表中索引个数32
索引中的字段个数10
有效性消息的字符个数255
有效性规则的字符个数2,048
表或字段说明的字符个数255
记录的字符个数（除了备注字段和 OLE 对象字段）2,000
字段属性设置的字符个数255
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