易采站长站为您分析C#数据库操作的三种经典用法
由于最近和数据库打交道，需要用C#和SQL Server 2005进行操作,就把近段时间内的最常用的操作做个总结。本人也是第一次用C#操作数据库，所以这三种典型用法对初学者还是挺有帮助的。
以下是我在visual studio 2005上写的一个类(连的是SQL Server 2005)，已经过测试通过。里面有3个方法比较典型，源码如下：
- using System; using System.Collections.Generic;
- using System.Text; using System.Data;
- using System.Data.SqlClient; namespace DatabaseOperate
- { class SqlOperateInfo
- { //Suppose your ServerName is "aa",DatabaseName is "bb",UserName is "cc", Password is "dd"
- private string sqlConnectionCommand = "Data Source=aa;Initial Catalog=bb;User ID=cc;Pwd=dd"; //This table contains two columns:KeywordID int not null,KeywordName varchar(100) not null
- private string dataTableName = "Basic_Keyword_Test"; private string storedProcedureName = "Sp_InertToBasic_Keyword_Test";
- private string sqlSelectCommand = "Select KeywordID, KeywordName From Basic_Keyword_Test"; //sqlUpdateCommand could contain "insert" , "delete" , "update" operate
- private string sqlUpdateCommand = "Delete From Basic_Keyword_Test Where KeywordID = 1"; public void UseSqlReader()
- { SqlConnection sqlConnection = new SqlConnection(sqlConnectionCommand);
- SqlCommand sqlCommand = new SqlCommand(); sqlCommand.CommandType = System.Data.CommandType.Text;
- sqlCommand.Connection = sqlConnection; sqlCommand.CommandText = sqlSelectCommand;
- sqlConnection.Open(); SqlDataReader sqlDataReader = sqlCommand.ExecuteReader();
- while(sqlDataReader.Read()) {
- //Get KeywordID and KeywordName , You can do anything you like. Here I just output them. int keywordid = (int)sqlDataReader[0];
