摘要:
1、查找表中多余的重复记录,重复记录是根据单个字段(Id)来判断 select * from 表 where Id in (select Id from 表 group byId having count(Id) > 1) 2、删除表中多余的重复记录,重复记录是根据单个字段(Id)来判断,只留有ro 阅读全文
摘要:
一、备份 1、不带日期的备份 @echo this is v7hqs database back sourctexp v7hqs/63015588@V7HQS_MAIN file=E:\oracle_bak\v7hqs\v7hqs.dmp log=E:\oracle_bak\v7hqs\v7hqs. 阅读全文
摘要:
/// /// 计算传入的时间距离今天的时间差 /// /// /// /// /// public void GetCriminalYX(DateTime dt, out int yy, out int mm, out int dd) { DateTime now = DateTime.Now; yy = mm = dd = 0; if (dt.Year > 9000 ... 阅读全文
摘要:
using System; using DevExpress.Xpo; using System.Data.OracleClient; using System.Data; using System.Collections; using System.Configuration; namespace BYCS_查找丢失单据 { /// /// 数据访问基础类(基于Oracle... 阅读全文