本程序是在网友vagrant的升级程序上增加了SQL数据库的更新升级功能，系统中采用了ACCES来存储数据更新的指令，从而达到逐步执行SQL代码的功能，因为在SQL中要创建表、存储过程、视图等对象时，需要删除原有老的对象，但是SQL不支持将这些指令存放在一起，从而导致出错。所以用ACCES来存储数据了-This program is a vagrant User upgrade procedure increased the SQL database, updated and upgraded features, the system used to store data update ACCES instructions, so as to achieve the gradual implementation of the SQL functionality of the code because it is necessary to create a table in SQL, stored procedure , view and other objects, the need to remove the original old objects, but the SQL does not support these instructions stored together, leading to an error. Therefore, the use ACCES to store the data of the