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

BuildQuery A Simple SQL Query Tool

 using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BuildQuery
{
/// <summary>
/// ʹÓÃÌṩµÄÊý¾Ý½¨Á¢Ò»¸öSQL²éѯ
/// </summary>
public class BuildQuery
{
#region ÀàµÄ±äÁ¿
int numFieldsCount, dispos; //×Ö¶ÎÊýÁ¿£¬¼Ç¼¶ººÅµÄÊýÁ¿
//
//½«ËùÓеÄ×ֶκÍÖµ·ÅÈëµ½Dictionary¼¯ºÏÀÌá¸ß²Ù×÷ЧÂÊ
//
Dictionary<string, string> dicFields = new Dictionary<string, string>(); //×ֶμ¯ºÏ
Dictionary<string, string> dicData = new Dictionary<string, string>(); //ÖµµÄ¼¯ºÏ
Dictionary<string, bool> dicQuotes = new Dictionary<string, bool>(); //ÊÇ·ñÐèÒªÒýºÅµÄ¼¯ºÏ
//
//Ìõ¼þ×ֶμ°ÖµµÄ¼¯ºÏ
//
List<string> listIDFields = new List<string>(); //×ֶμ¯ºÏ
List<string> listIDValues = new List<string>(); //ÖµµÄ¼¯ºÏ
List<bool> listIDQuotes = new List<bool>(); //ÒýºÅ¼¯ºÏ
List<string> listIDOperators = new List<string>();//²Ù×÷·û¼¯ºÏ

string strTable; //±íÃû
Boolean IdentityCheck; //ÊÇ·ñÐèÒª·µ»ØÒ»¸öеÄʵÌåÀà
/// <summary>
/// ·â×°Ò»¸öÊÇ·ñÐèҪеÄʵÌåÀà
/// </summary>
public Boolean GetIdentity
{
get { return IdentityCheck; }
set { IdentityCheck = value; }
}

/// <summary>
/// ·â×°·µ»ØÒ»¸ö²éѯµÄ½á¹û
/// </summary>
public string Table
{
get { return strTable; }
set { strTable = value; }
}
#endregion
/// <summary>
/// ÀàµÄʵÀý»¯¹¹Ôì·½·¨
/// </summary>
public BuildQuery()
{
}
/// <summary>
/// ½¨Á¢Ò»¸ö²éѯǰÇå³ýDICTIONARY¼¯ºÏµÄËùÓÐÄÚÈÝ
/// </summary>
publ


Ïà¹ØÎĵµ£º

SQL ÍâÀ´¼üµÄÓ÷¨

ÍâÀ´¼üÊÇÒ»¸ö(»òÊý¸ö)Ö¸ÏòÁíÍâÒ»¸ö±í¸ñÖ÷¼üµÄÀ¸Î»¡£ÍâÀ´¼üµÄÄ¿µÄÊÇÈ·¶¨×ÊÁϵIJο¼ÍêÕûÐÔ(referential integrity)¡£»»ÑÔÖ®£¬Ö»Óб»×¼ÐíµÄ×ÊÁÏÖµ²Å»á±»´æÈë×ÊÁÏ¿âÄÚ¡£
¾ÙÀýÀ´Ëµ£¬¼ÙÉèÎÒÃÇÓÐÁ½¸ö±í¸ñ£ºÒ»¸ö CUSTOMER ±í¸ñ£¬ÀïÃæ¼Ç¼ÁËËùÓй˿͵Ä×ÊÁÏ£»ÁíÒ»¸ö ORDERS ±í¸ñ£¬ÀïÃæ¼Ç¼ÁËËùÓй˿Ͷ©¹ºµÄ×ÊÁÏ¡£ÔÚÕâÀïµÄÒ»¸öÏÞÖÆ£¬ ......

SQL DROP TABLEµÄÓ÷¨

ÓÐʱºòÎÒÃÇ»á¾ö¶¨ÎÒÃÇÐèÒª´ÓÊý¾Ý¿âÖÐÇå³ýÒ»¸ö±í¸ñ¡£ÊÂʵÉÏ£¬Èç¹ûÎÒÃDz»ÄÜÕâÑù×öµÄ»°£¬Äǽ«»áÊÇÒ»¸öºÜ´óµÄÎÊÌ⣬ÒòΪÊý¾Ý¿â¹ÜÀíʦ (Database Administrator -- DBA) ÊÆ±ØÎÞ·¨¶ÔÊý¾Ý¿â×öÓÐЧÂʵĹÜÀí¡£»¹ºÃ£¬SQL ÓÐÌṩһ¸ö DROP TABLEµÄÓï·¨À´ÈÃÎÒÃÇÇå³ý±í¸ñ¡£ DROP TABLE µÄÓï·¨ÊÇ£º
DROP TABLE "±í¸ñÃû"
ÎÒÃÇÈç¹ûÒªÇå³ ......

SQL UPDATEµÄÓ÷¨

ÎÒÃÇÓÐʱºò¿ÉÄÜ»áÐèÒªÐ޸ıí¸ñÖеÄ×ÊÁÏ¡£ÔÚÕâ¸öʱºò£¬ÎÒÃǾÍÐèÒªÓõ½ UPDATE Ö¸Áî¡£Õâ¸öÖ¸ÁîµÄÓï·¨ÊÇ£º
UPDATE "±í¸ñÃû"
SET "À¸Î»1" = [ÐÂÖµ]
WHERE {Ìõ¼þ}
×îÈÝÒ×Á˽âÕâ¸öÓï·¨µÄ·½Ê½ÊÇ͸¹ýÒ»¸öÀý×Ó¡£¼ÙÉèÎÒÃÇÓÐÒÔϵıí¸ñ£º
Store_Information ±í¸ñ
store_name
Sales
Date
Los Angeles
$1500
Jan-05-1 ......

¡¾×ª¡¿ÈçºÎ²é¿´oracle sqlÖ´Ðмƻ®

·½·¨Ò»
µÚÒ»²½£ºµÇÈësql/plus Ö´ÐÐÃüÁÎÞÏȺó˳Ðò£©
set   time   on; (˵Ã÷£º´ò¿ªÊ±¼äÏÔʾ£©  
  set   autotrace   on; (˵Ã÷£º´ò¿ª×Ô¶¯·ÖÎöͳ¼Æ£¬²¢ÏÔʾSQLÓï¾äµÄÔËÐнá¹û£©  
  set   autotrace   traceonly; (˵à ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ