C#Á¬½ÓMySQLÊý¾Ý¿â·½·¨
C#Á¬½ÓMySQLÊý¾Ý¿â·½·¨
1¡¢ÓÃMySQLDriverCSÁ¬½ÓMySQLÊý¾Ý¿âÏÈÏÂÔØºÍ°²×°MySQLDriverCS£¬µØÖ·£º
http://sourceforge.net/projects/mysqldrivercs
ÔÚ°²×°Îļþ¼ÐÏÂÃæÕÒµ½MySQLDriver.dll£¬È»ºó½«MySQLDriver.dllÌí¼ÓÒýÓõ½ÏîÄ¿ÖÐ
×¢£ºÎÒÏÂÔØµÄÊǰ汾ÊÇ MySQLDriverCS-n-EasyQueryTools-4.0.1-DotNet2.0.exe
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Odbc;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using MySQLDriverCS;
namespace mysql
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
MySQLConnection conn = null;
conn = new MySQLConnection(new MySQLConnectionString("localhost", "inv", "root", "831025").AsString);
conn.Open();
MySQLCommand commn = new MySQLCommand("set names gb2312", conn);
commn.ExecuteNonQuery();
string sql = "select * from exchange ";
MySQLDataAdapter mda = new MySQLDataAdapter(sql, conn);
DataSet ds = new DataSet();
mda.Fill(ds, "table1");
Ïà¹ØÎĵµ£º
asp.netÖе¼³öExeclµÄ·½·¨£º
ÔÚasp.netÖе¼³öExeclÓÐÁ½ÖÖ·½·¨£¬Ò»ÖÖÊǽ«µ¼³öµÄÎļþ´æ·ÅÔÚ·þÎñÆ÷ij¸öÎļþ¼ÐÏÂÃæ£¬È»ºó½«ÎļþµØÖ·Êä³öÔÚä¯ÀÀÆ÷ÉÏ£»Ò»ÖÖÊǽ«ÎļþÖ±½Ó½«ÎļþÊä³öÁ÷д¸øä¯ÀÀÆ÷¡£ÔÚResponseÊä³öʱ£¬t·Ö¸ôµÄÊý¾Ý£¬µ¼³öexeclʱ£¬µÈ¼ÛÓÚ·ÖÁУ¬nµÈ¼ÛÓÚ»»ÐС£
1¡¢½«Õû¸öhtmlÈ«²¿Êä³öexecl
´Ë·¨½«htmlÖÐËùÓеÄÄÚÈÝ£ ......
ÎÊÌâÃèÊö£º
C#³ÌÐò,ÀïÃæcopyÁËÐí¶àÔÀ´µÄ´úÂë,ËùÒԲβÆëµÄ,ºÜÄѶÁ,ÈçºÎ²ÅÄÜÈôúÂë×Ô¶¯ÅÅÆë,¾ÍÏóVS 6.0ÖпÉÒÔʹÓÿì½Ý¼ü,·Ç³£·½±ã.
½â´ð£º
ctrl+a,ÏÈȫѡ
ctrl+k,ctrl+f,×Ô¶¯ÅÅÁÐ
»òÕß
ctrl+a,ÏÈȫѡ
alt+F8 ×Ô¶¯ÅÅÁÐ ......
½ñÌìдһ¸öÉÌÆ·µÄÐ޸ŦÄÜʱÓöµ½µÄÎÊÌâ
ÉÌÆ·ÖÐÖØÁ¿ weight µÄÊý¾Ý¿â(SQL Server2005)ÀàÐͶ¨ÒåΪ float
ÔÚmappings ÖÐת»»Îªc#ÀàÐ͵ÄÒ»¾äΪ
<result property="Goods_Weight" column="Goods_Weight" type="float" dbType="float"/>
°´Àí˵Õâ¸ö float ÊÇÒ»ÑùµÄ£¬×ª»»ÍêÈ«²»»á³öÏÖÎÊÌ⣬
ʵ¼Ê³ÌÐòÔËÐÐʱ£¬ÏµÍ³±¨´í
......
MySQLÓжàÖÖ´æ´¢ÒýÇæ£º
MyISAM¡¢InnoDB¡¢MERGE¡¢MEMORY(HEAP)¡¢BDB(BerkeleyDB)¡¢EXAMPLE¡¢FEDERATED¡¢ARCHIVE¡¢CSV¡¢BLACKHOLE¡£
MySQLÖ§³ÖÊý¸ö´æ´¢ÒýÇæ×÷Ϊ¶Ô²»Í¬±íµÄÀàÐ͵Ĵ¦ÀíÆ÷¡£MySQL´æ´¢ÒýÇæ°üÀ¨´¦ÀíÊÂÎñ°²È«±íµÄÒýÇæºÍ´¦Àí·ÇÊÂÎñ°²È«±íµÄÒýÇæ£º
¡ô MyISAM¹ÜÀí·ÇÊÂÎñ±í¡£ËüÌṩ¸ßËÙ´æ´¢ºÍ¼ìË÷£¬ÒÔ¼°È«ÎÄËÑË÷ÄÜÁ¦¡ ......
Doing INTERSECT and MINUS in MySQL
By Carsten | October 3, 2005
Doing an INTERSECT
An INTERSECT is simply an inner join where we compare the tuples of one table with those of the other, and select those that appear in both while weeding out duplicates. So
SELECT member_id, name from a
INTERSECT ......