Some databases track changes to each record by assigning version number to fields that are changed. This number is incremented by 1 each time the field is changed. Displays the internal version number of the record in the database table.
某些数据库通过向修改的字段指定版本号来跟踪每个数据记录的修改。字段每被修改一次，版本号就递增 1。在数据库表格中显示数据记录的内部版本号。