c# ²Ù×÷mssqlÊý¾Ý¿â º¬Óдø²ÎÊýsqlÓï¾äÔËÐÐ
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="Default" value="Default" />
</appSettings>
<connectionStrings>
<add name="Default" connectionString="Data Source=192.168.1.197;User ID=diamond;Password=88888888;Initial Catalog=EmailAnalyse" providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Text;
namespace OfficeOutlook
{
/// <summary>
///DataBase µÄժҪ˵Ã÷
/// </summary>
public class DataBase
{
protected SqlConnection BaseSqlConnection = new SqlConnection();//Á¬½Ó¶ÔÏó
protected SqlCommand BaseSqlCommand = new SqlCommand(); //ÃüÁî¶ÔÏó
public DataBase()
{
//
// TODO: ÔÚ´Ë´¦Ìí¼Ó¹¹Ô캯ÊýÂß¼
//
}
protected void OpenConnection()
{
if (BaseSqlConnection.State == ConnectionState.Closed) //Á¬½ÓÊÇ·ñ¹Ø±Õ
try
{
&nb
Ïà¹ØÎĵµ£º
ÎÊÌâÃèÊö£º
±¾ÌâÓõ½ÏÂÃæÈý¸ö¹ØÏµ±í£º
CARD ½èÊ鿨¡£ CNO ¿¨ºÅ£¬NAME ÐÕÃû£¬CLASS °à¼¶
BOOKS ͼÊé¡£ BNO ÊéºÅ£¬BNAME ÊéÃû,AUTHOR ×÷Õߣ¬PRICE µ¥¼Û£¬QUANTITY ¿â´æ²áÊý
BORROW ½èÊé¼Ç¼¡£ CNO ½èÊ鿨ºÅ£¬BNO ÊéºÅ ......
SQL ÖеĴ洢¹ý³Ì£º
1.ÔÚ½¨Á¢´æ´¢¹ý³Ì֮ǰ¼ì²éËùÃüÃûµÄ´æ´¢¹ý³ÌÊÇ·ñÓ¦¾´æÔÚ¡££¨ÒòΪÈç¹ûͬÃû´æ´¢¹ý³ÌÒѾ´æÔÚ£¬ÐµĴ洢¹ý³Ì½«²»±»½¨Á¢£©
if exists(select * from sysobject where name='proc name' and type='p')
drop proc proc name
go
2.¶¨Òå´æ´¢¹ý³Ì
create proc test
@gradel int, --¶¨Òå±äÁ ......
Óöµ½MS SQL Server 2005 ÎÞ·¨É¾³ýÊý¾Ý¿â×÷Òµ¡£
¡¡¡¡Ê×ÏÈ£¬ÒÔsaÕË»§µÇ¼£¬²é¿´ÒÔÏÂ2¸ö±íµÄÊý¾Ý£¬Èç¹û²»Îª¿Õ¾ÍÓÐÎÊÌâ¡£
¡¡¡¡Sql´úÂë
¡¡¡¡select¡¡*¡¡from¡¡msdb.dbo.sysmaintplan_subplans
¡¡¡¡select¡¡*¡¡from¡¡msdb.dbo.sysmaintplan_log
¡¡¡¡Èç¹û²»Îª¿Õ£¬Ö´ÐÐÒÔϲÙ×÷£¬»ù±¾Éϲ»Óÿ¼ÂÇɾ³ýÄÄÒ»Ìõ¼Ç¼£¬ÓÐÎÊÌâµÄ×÷Òµ¾Í ......
Student(S#,Sname,Sage,Ssex) ѧÉú±í
Course(C#,Cname,T#) ¿Î³Ì±í
SC(S#,C#,score) ³É¼¨±í
Teacher(T#,Tname) ½Ìʦ±í
ÎÊÌ⣺
1¡¢²éѯ“001”¿Î³Ì±È“002”¿Î³Ì³É¼¨¸ßµÄËùÓÐѧÉúµÄѧºÅ£»
select a.S# from (select s#,score from SC where C#='001') a,(select s#,score
fr ......
ÎÊÌâÃèÊö£º
±¾ÌâÓõ½ÏÂÃæÈý¸ö¹ØÏµ±í£º
CARD ½èÊ鿨¡£ CNO ¿¨ºÅ£¬NAME ÐÕÃû£¬CLASS °à¼¶
BOOKS ͼÊé¡£ BNO ÊéºÅ£¬BNAME ÊéÃû,AUTHOR ×÷Õߣ¬PRICE µ¥¼Û£¬QUANTITY ¿â´æ²áÊý
BORROW ½èÊé¼Ç¼¡£ CNO ½èÊ鿨ºÅ£¬BNO ÊéºÅ ......