ACCESS数据库修改自动编号的ID值为零怎么操作-Mysql Tutorial-php.cn

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ACCESS数据库修改自动编号的ID值为零怎么操作

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Jun 07, 2016 pm 04:22 PM

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我们在开发软件，或者网站制作时候，经常用ACCESS MDB数据库进行调试，很多自动编号的数据都删除了，最后ID很大，或者不连贯。针对ACCESS数据库，有时候因删除内容导致ID跳号，或者其他原因，想修改自动编号的ID，怎么操作呢?让我们一步一步对ACCESS数据库ID

　　我们在开发软件，或者网站制作时候，经常用ACCESS MDB数据库进行调试，很多自动编号的数据都删除了，最后ID很大，或者不连贯。针对ACCESS数据库，有时候因删除内容导致ID跳号，或者其他原因，想修改自动编号的ID，怎么操作呢?让我们一步一步对ACCESS数据库ID进行归零，修改自动编号的ID值，再重新自动编号。

　　以下是我的修改方法，是可行的，与大家分享一下：(操作之前，一定要备份数据库，防止意外发生，呵呵)

　　1、备份ACCESS数据库(这个是必须的)

　　2、打开数据库，右键点击要修改ID值的表A，打开“设计视图”，将ID字段的数据类型由“自动编号”改为“数字”，关闭保存。

　　3、然后打开表A，修改ID值，也可以修改已存在的其他数据。修改完毕后关闭表。(此刻ID字段是不能改回“自动编号”数据类型的)

　　4、右键单击表A，选择“复制”，然后右键点一下空白处，选择“粘贴”，，表名随便写，如“AA”，下面选择“只粘贴结构”，然后点确定生成新表AA。

　　5、选中表AA，打开“设计视图”。把ID字段的数据类型改为“自动编号”，关闭保存。(此刻表AA是没有数据的，所以可以修改成功)

　　6、右键单击表A，选择“复制”，然后右键点一下空白处，选择“粘贴”，表名写刚生成的新表“AA”，下面选择“将数据追加到已有的表”，最后点确定。

　　7、然后将原表A改名为A111，将表AA改名为A。这样就实现了用新表替换旧表，仅ID值修改，其他内容不变。(提示：原来的表A可以不用改名，直接删除。但是我建议先改名作为备份，等新表测试成功后再删除)

　　此操作可以举一反三，不仅可以改ID值，也可以改其他数据类型，大家自由发挥!

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