C#同步SQL Server数据库中的数据 1. 先写个sql处理类: using System; using System.Collections.Generic; using System.Data; using System.Data.SqlClient; using System.Text; namespace PinkDatabaseSync { class DBUtility : IDisposable { private string Server; private string
--关于null在oracle数据库中是否参与计算,进行验证,with td as (select null id,1 name from dual ),td1 as ( select null id,2 name from dual ) select * from td, td1 where nvl(td.id,'0.00') = '0' select '1'||'0.1' from dual number number -> char select to_char(3333.00,'999,