C#ÖÐÓÃÓÚÁ¬½ÓSQLÊý¾Ý¿âµÄSQLHelperÀà
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient; //ÒýÓÃÃüÃû¿Õ¼ä
namespace DAL
{
/*******************************************************************************
* Name: SQLHelper
* File: SQLHelper.cs
* Description: ÓÃÓÚÍê³É¶ÔÊý¾Ý¿âµÄÏà¹Ø²Ù×÷
* Author: Ñ©ÀÇ
* DateTime: 2010Äê05ÔÂ13ÈÕ
*******************************************************************************/
public class SQLHelper
{
//ÉèÖÃÁ¬½Ó×Ö·û´® —— SQL ServerÑé֤ģʽµÄÁ¬½Ó×Ö·û´®
//public static string strConn = @"server = PANLING;database = StudentMIS;uid = sa;pwd = sa";
//ÉèÖÃÁ¬½Ó×Ö·û´® —— WindowsÑé֤ģʽµÄÁ¬½Ó×Ö·û´®
public static string strConn = @"server = T403-004\HB_SQLSERVER;database = DB_LibraryManage;Integrated Security = SSPI";
/// <summary>
/// ¹¦ÄÜÃèÊö£ºÖ´ÐÐADO.NETÔö¡¢É¾¡¢¸Ä²Ù×÷
/// </summary>
/// <param name="strText">ÊäÈë²ÎÊý —— ÒªÖ´ÐеÄSQLÓï¾ä(ÃüÁîÎı¾)</param>
/// <param name="cmdType">ÊäÈë²ÎÊý —— ÒªÖ´ÐеÄSQLÃüÁîÀàÐÍ</param>
/// <param name="SqlParams">ÊäÈë²ÎÊý —— ÒªÖ´ÐеÄSQLÓï¾äÖеIJÎÊýÁбí(ÃüÁî²ÎÊýÁбí)</param>
/// <returns>·µ»ØÖ´ÐÐÓ°ÏìµÄÐÐÊý</returns>
public static int MyExecu
Ïà¹ØÎĵµ£º
1.ɾ³ý±í
select 'drop table ' || table_name || ' purge;'
from user_tables
where length(table_name) <= 4;
ɾ³ý´øÔ¼ÊøµÄ±í
Drop table ±íÃû cascade constraints;
2.²éѯview&ͬÒå´Ê
--˵Ã÷£º¿ÉÒÔ¸ù¾ÝÊÓͼµÄtext_length ......
C#Éú³Écom×é¼þ£¬¹©aspµ÷ÓÃ
Ò»¡¢vs2005—н¨ÏîÄ¿—C#Àà¿â
Àà¿âÔ´ÂëÈçÏÂ(°üº¬½Ó¿Ú£¬À࣬ʼþ½Ó¿Ú)£º
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Data.SqlClient;
using System.Runtime.InteropServices;
namespace entryclass
{
  ......
1.×Ö·û´®º¯Êý
³¤¶ÈÓë·ÖÎöÓÃ
datalength(Char_expr) ·µ»Ø×Ö·û´®°üº¬×Ö·ûÊý,µ«²»°üº¬ºóÃæµÄ¿Õ¸ñ
substring(expression,start,length) ²»¶à˵ÁË,È¡×Ó´®
right(char_expr,int_expr) ·µ»Ø×Ö·û´®ÓÒ±ßint_expr¸ö×Ö·û
×Ö·û²Ù×÷Àà
upper(char_expr) תΪ´óÐ ......
º¯ÊýÒÀÀµ
==========================================
Ò»¡¢º¯ÊýÒÀÀµ¸ÅÄî
¡¡¡¡º¯ÊýÒÀÀµÊÇ´ÓÊýѧ½Ç¶ÈÀ´¶¨ÒåµÄ£¬ÔÚ¹ØÏµÖÐÓÃÀ´¿Ì»¹ØÏµ¸÷ÊôÐÔÖ®¼äÏà»¥ÖÆÔ¼¶øÓÖÏ໥ÒÀÀµµÄÇé¿ö¡£º¯ÊýÒÀÀµÆÕ±é´æÔÚÓÚÏÖʵÉú»îÖУ¬±ÈÈ磬ÃèÊöÒ»¸öѧÉúµÄ¹ØÏµ£¬¿ÉÒÔÓÐѧºÅ¡¢ÐÕÃû¡¢ËùÔÚϵµÈ¶à¸öÊôÐÔ£ ......
²»Åç¿ÚË®!Ö±½ÓÉÏͼ
1.Êý¾Ý¿â¶ÔÏó¼ìË÷¹¦ÄÜ
2.T-SQLÓï·¨°ïÖú
3.³£Óú¯Êý°ïÖú(²»¶®ÄñÓï?13×Ô¼ºÁ·Á·°É!)
Download Now
°²×°Á÷³Ì:
1.ÏȰÑÍøÂçßDzæÁË(¶ÏÍø - -!!)
2.°ÑËùÓеÄSQL Server,VS¶¼¹ØÁË,ÔËÐÐSQLPrompt 4.0.exe°²×°
3.°²×°Íê±Ïºó,Í˳öRedGate.SQLPrompt.TrayApp ......