摘要:
1 using System; 2 using System.Collections.Generic; 3 using System.Text; 4 using System.IO; 5 using System.Runtime.Serialization; 6 using System.Secu... 阅读全文
摘要:
1 判断数据库是否存在if exists (select * from sys.databases where name = '数据库名')drop database [数据库名]2 判断表是否存在if exists (select * from sysobjects where id = obje... 阅读全文