--A)建立和撤销自动增长列--(在现有表结构中新增字段)/*撤消主键*/alter table [Student] drop primary key (S_id)/*增加主键*/alter table [Student] add primary key (S_id) goalter table xyf_成品出口耗用保税料件明细 add Pkey int primary key identity(... Read More
Code as below:Remark by Jimmy Jun 20th 2010代码 Read More