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DB2常用的命令 1.启动数据库 db2start2.停止数据库 db2stop3.连接数据库 db2 connect to oyd user db2 using pwd (注:oyd为数据库名)4.读数据库管理程序配置 db2 get dbm cfg5.写数据库管理程序配置 db2 update dbm cfg using 参数名 参数值6.读数据库的配置 d... 阅读全文
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db2cmd db2 catalog tcpip node node142 remote 192.0.3.33 server 50000db2 catalog db dms_cs as dms_cs at node node142 db2 connect to dms_cs user db2admin using admindb2//Client Tool:Rapid SQL 阅读全文
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Access、Sql Server:select Top 10 * from myTableMySql:select * from myTable limit 10DB2:select * from myTable fetch first 10 rows only ORACLE:select * from myTable where rownum <= 10 SQLITE:select * ... 阅读全文
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CODE: 1Imports System.Data 2Imports System.Data.OleDb 3 4Public Class Form1Class Form1 5 6 Private Sub Button1_Click()Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) ... 阅读全文
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Dim table As DataTable = New DataTable("jhreport") Dim column As DataColumn column = New DataColumn() column.ColumnName = "id" table.Columns.Add(column) ... 阅读全文
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cmd.CommandText = String.Format("select sum(INV_QUANTITY) as sl from DMS_INVENTORY_TEMP " + _ " where ('{0}'=org_num||customer_num) and INV_date='{1}' ", search, rqsj) // search=org_num+cus... 阅读全文
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1.Code: 1using System; 2using System.Collections.Generic; 3using System.ComponentModel; 4using System.Data; 5using System.Drawing; 6using System.Text; 7using System.Windows.Forms; 8 9using ZedGraph;1... 阅读全文
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1.code: using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using ZedGraph;namespace bar{ p... 阅读全文
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1.Code : 1Imports ZedGraph 2Imports MySql.Data 3Imports MySql.Data.MySqlClient 4Imports System.Data 5 6Public Class Form1Class Form1 7 8 Private Sub Form1_Load()Sub Form1_Load(ByVal sender As Syst... 阅读全文
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1. 原始单据与实体之间的关系 可以是一对一、一对多、多对多的关系。在一般情况下,它们是一对一的关系:即一张原始单据对应且只对应一个实体。在特殊情况下,它们可能是一对多或多对一的关系,即一张原始单据对应多个实体,或多张原始单据对应一个实体。这里的实体可以理解为基本表。明确这种对应关系后,对我们设计录入界面大有好处。 〖例1〗:一份员工履历资料,在人力资源信息系统中,就对应三个基本表:员... 阅读全文