Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

C#.NETÁ¬½Ómysql·½·¨

Ò»¡£ mysql.data.dll¿½±´µ½binÏÂÃæ²¢ÒýÓÃÒ»ÏÂ
using MySql.Data.MySqlClient;
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string myConnectionString = "Database=test;Data Source=localhost;User Id=root;Password=admin";
        MySqlConnection mycn = new MySqlConnection(myConnectionString);
       
        try
        {
            mycn.Open();
            Response.Write("<mce:script type="text/javascript"><!--
alert('Á¬½Ó³É¹¦')
// --></mce:script>");
        }
        catch (Exception ex)
        {
            Response.Write("<mce:script type="text/javascript"><!--
alert(" ex.ToString() ")
// --></mce:script>");
        }
    }
}
Ò²¿ÉÒÔÅäÖÃapp.config (web.config):
<appSettings>
    <add key="Con" value="Provider=MySQLProv;Data Source=test;User Id=root;Password=admin;pooling=false;CharSet=utf8;port=3306"/>
</appSettings>
¶þ¡£ÒªÌí¼Ó¶ÔMySql.Data.dllµÄÒýÓá£
Á¬½Ó£º
string connStr = "server=localhost;user id=root; password=; database=aa; pooling=false";//
Á¬½Ó×Ö·û´®
ÒÔÏÂΪÒýÓõÄÄÚÈÝ£º
MySqlConnection conn = new MySqlConnection( connStr );//¹¹ÔìÊý¾Ý¿âÁ¬½Ó
try
{
conn.Open();//´ò¿ªÁ¬½Ó
MySqlCommand cmd = new MySqlCommand("select * from list",conn);//¹¹Ôì²éѯÃüÁî
this.DataGrid1.DataSource=cmd.ExecuteReader();//Ö´Ðвéѯ£¬·µ»ØÒ»¸öDataReader£¬ÉèÖÃDataGrid1µÄÊý¾ÝԴΪ¸ÃDataReader


Ïà¹ØÎĵµ£º

MySQL ×Ö·û´®º¯Êý£º×Ö·û´®½ØÈ¡

 MySQL ×Ö·û´®½ØÈ¡º¯Êý£ºleft(), right(), substring(), substring_index()¡£»¹ÓÐ mid(), substr()¡£ÆäÖУ¬mid(), substr() µÈ¼ÛÓÚ substring() º¯Êý£¬substring() µÄ¹¦Äܷdz£Ç¿´óºÍÁé»î¡£
1. ×Ö·û´®½ØÈ¡£ºleft(str, length)
mysql> select left('sqlstudy.com', 3);
+-------------------------+
| left('sq ......

MySQL 5.4µÄÐÂÌØÐÔ½âÎö

Author: Ivan@mysqlab.net/Ì·¿¡Çà ×ªÔØÇë×¢Ã÷À´Ô´URIÁ´½Ó:
http://www.mysqlab.net/blog/2009/04/mysql-54µÄÐÂÌØÐÔ½âÎö/
MySQL 5.4 Ö®ËùÒÔÃüÃûΪ5.4£¬¶ø²»ÊÇ5.2 ÊÇÒòΪ֮ǰµÄ5.2°æ±¾±»ÃüÃûΪ6.0ÁË£¨Õâ¸öÓ¦¸ÃÊÇÉÌÒµÉϵÄÔ­Òò£¬¾ÍÏñjava1.6±»ÃüÃûΪ6.0£©¡£ÏÖÔÚµÄ5.4 preview release ÊÇÔÚµ±Ç°MySQL5.1µÄ»ù´¡ÉÏ£¬¶Ô Innodb ½ø ......

MySqlͨÓô洢·ÖÒ³

DELIMITER $$
DROP PROCEDURE IF EXISTS `hotel`.`prc_page_hotel_result`$$
CREATE DEFINER=`root`@`localhost` PROCEDURE  `hotel`.`prc_page_hotel_result`(
in currpage      int,
in columns       varchar(500),
in tablename   &n ......

dz̸MySQLÂý²éѯÈÕÖ¾¼°microslow patch(msl patch)

mysql(°üÀ¨ËùÓÐ5.*ϵÁÐ,5.1.21֮ǰ)µÄÂý²éѯÈÕ־ĬÈÏÊÇÒÔÃëΪµ¥Î»µÄ,¿ÉÒÔͨ¹ýset [session|global] long_query_time=1Õâ¸ö×îµÍÒ²¾ÍÊÇ¿ÉÒÔÉèÖõ½1Ãë,¶ÔÓÚ0.5,0.005Ö®Àà¾ÍÎÞÄÜΪÁ¦ÁË,Õâʱºò¿ÉÒÔÓÐmicroslow patch(msl patch)²¹¶¡À´Íê³ÉÕâÒ»¹¤×÷,Õâ¸ö¹¦Äܵĺô¦×ÔÈ»²»ÑÔ¶øÓ÷. ÔÚmysql5.1.21¼°ÒÔºó°æ±¾¿ÉÒÔͨ¹ýset [session|gl ......

mysql´¦Àíº£Á¿Êý¾ÝµÄÓÅ»¯ÅäÖÃ

³£³£Óöµ½´óÊý¾ÝÁ¿Æµ·±¶ÁÐ´ÊÆ±Ø»áµ¼Ö·þÎñÆ÷µÄÐÔÄÜϽµ¡£ÏÂÃæ¼Ç¼һ϶ÔmysqlµÄÓÅ»¯ÅäÖÃ
1.Ê×ÏȹرÕauto commit¡£
2.¶ÔÓÚÊý¾Ý±íʹÓÃInnoDB¡£
3.¹Ø±ÕÍâ¼üÔ¼Êø¡£
4.²ÉÓöàÖµ²åÈë“INSERT INTO ±íÃû VALUES (1,2), (5,5), ...;” Èç¹ûÓдóÁ¿²¢·¢¿ÉÒÔÓøü¸ÄINSERT INTOΪ INSERT DELAYED INTO¿ÉÒÔÔڳ̶ÈÉϽ⾠......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ