{"id":46,"date":"2008-02-09T20:01:46","date_gmt":"2008-02-09T20:01:46","guid":{"rendered":""},"modified":"2008-02-09T20:01:46","modified_gmt":"2008-02-09T20:01:46","slug":"46","status":"publish","type":"post","link":"https:\/\/www.poloo.org\/?p=46","title":{"rendered":"C#\u6570\u636e\u5e93\u64cd\u4f5c\u76843\u79cd\u5178\u578b\u7528\u6cd5"},"content":{"rendered":"

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       \u4ee5\u4e0b\u662f\u6211\u5728visual studio 2005\u4e0a\u5199\u7684\u4e00\u4e2a\u7c7b(\u8fde\u7684\u662fSQL Server 2005),\u5df2\u7ecf\u8fc7\u6d4b\u8bd5\u901a\u8fc7.\u91cc\u9762\u67093\u4e2a\u65b9\u6cd5\u6bd4\u8f83\u5178\u578b,\u5728\u6b64\u628a\u6e90\u7801\u8d34\u51fa:
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;<\/p>\n

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\";<\/p>\n

        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\";<\/p>\n

        public void UseSqlReader()
        {
            SqlConnection sqlConnection = new SqlConnection(sqlConnectionCommand);
            SqlCommand sqlCommand = new SqlCommand();
            sqlCommand.CommandType = System.Data.CommandType.Text;
            sqlCommand.Connection = sqlConnection;
            sqlCommand.CommandText = sqlSelectCommand;<\/p>\n

            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];
                \/\/the same as: int keywordid = (int)sqlDataReader[\"KeywordID\"]
                string keywordName = (string)sqlDataReader[1];
                \/\/the same as: string keywordName = (int)sqlDataReader[\"KeywordName\"]
                Console.WriteLine(\"KeywordID = \" + keywordid + \" , KeywordName = \" + keywordName);
            }<\/p>\n

            sqlDataReader.Close();
            sqlCommand.Dispose();
            sqlConnection.Close();
        }
        public void UseSqlStoredProcedure()
        {
            SqlConnection sqlConnection = new SqlConnection(sqlConnectionCommand);
            SqlCommand sqlCommand = new SqlCommand();
            sqlCommand.CommandType = CommandType.StoredProcedure;
            sqlCommand.Connection = sqlConnection;
            sqlCommand.CommandText = storedProcedureName;<\/p>\n

            sqlConnection.Open();
            sqlCommand.ExecuteNonQuery();
            \/\/you can use reader here,too.as long as you modify the sp and let it like select * from ....<\/p>\n

            sqlCommand.Dispose();
            sqlConnection.Close();
        }
        public void UseSqlDataSet()
        {
            SqlConnection sqlConnection = new SqlConnection(sqlConnectionCommand);
            SqlCommand sqlCommand = new SqlCommand();
            sqlCommand.CommandType = System.Data.CommandType.Text;
            sqlCommand.Connection = sqlConnection;
            sqlCommand.CommandText = sqlSelectCommand;<\/p>\n

            sqlConnection.Open();
            SqlDataAdapter sqlDataAdapter = new SqlDataAdapter();
            sqlDataAdapter.SelectCommand = sqlCommand;
            DataSet dataSet = new DataSet();
            \/\/sqlCommandBuilder is for update the dataset to database
            SqlCommandBuilder sqlCommandBuilder = new SqlCommandBuilder(sqlDataAdapter);
            sqlDataAdapter.Fill(dataSet, dataTableName);<\/p>\n

            \/\/Do something to dataset then you can update it to Database.Here I just add a row
            DataRow row = dataSet.Tables[0].NewRow();
            row[0] = 10000;
            row[1] = \"new row\";
            dataSet.Tables[0].Rows.Add(row);<\/p>\n

            sqlDataAdapter.Update(dataSet, dataTableName);<\/p>\n

            sqlCommand.Dispose();
            sqlDataAdapter.Dispose();
            sqlConnection.Close();
        }
    }
}
<\/code>
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