linq to sql Ïê
×î½üѧϰ linq to sql ¸Ð¾õ»¹ÊÇ¿ÉÒԵ쬷½±ã¿ì½Ý£¬ÒÔǰÎÊÊÇÒÔΪ²»ºÃÓ㬲»ÏëÓ㬵«ÊǽñÌìÓÃÁËһϸоõ»¹ÊDz»´íµÄ£¬ ȷʵÊǿ죬µ«ÊÇÎÒÓÖÔÚÏë
Èç¹û³ö´íÁËÔõô°ì£¬ÕâÑùÒ»¸öÀàÀï·ÅÄÇô¶àµÄÎļþÊÇÓе㲻ºÃ£¬ÔÙ˵ÁË linq to sql µÍ²ã²»ÖªµÀÔõôʵÏֵ쬻¹ÊÇûÓÐ×Ô¼ºÐ´µÄ·ÃÎʸоõÊæ·þµãºÇºÇ£¡£¡£¡
Èç¹ûÊÇ¿ìËÙ¿ª·¢Óà linq to sql »¹ÊDz»´íµÄÑ¡Ôñ°¡£¡£¡£¡
-
»ù±¾µÄÔöɾ³ý¸Ä²é
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
namespace WebServiceText
{
/// <summary>
/// Service1 µÄժҪ˵Ã÷
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ToolboxItem(false)]
// ÈôÒªÔÊÐíʹÓà ASP.NET AJAX ´Ó½Å±¾Öе÷ÓÃ´Ë Web ·þÎñ£¬ÇëÈ¡Ïû¶ÔÏÂÐеÄ×¢ÊÍ¡£
// [System.Web.Script.Services.ScriptService]
public class Service1 : System.Web.Services.WebService
{
DataClasses1DataContext context = new DataClasses1DataContext();
[WebMethod]
public List<Text> selectSwhere(int startid,int endid)
{
var result = (from text in context.Text
where text.id >= startid && text .id <=endid
select text).ToList<Text>();
return result;
}
[WebMethod]
public List<Text> selectAll()
{
return context.Text.ToList<Text>();
}
/// <summary>
/// Ìí¼ÓÒ»¸öÊý¾Ý
/// </summary>
/// <param name="sex">ÐÔ±ð</param>
/// <param name="age">ÄêÁä</param>
/// <returns>³É¹¦ÎªTrue·ñÔòΪFalse</returns>
[WebMethod]
public List<Text> addText(string sex, int age)
{
Te
Ïà¹ØÎĵµ£º
ϵͳ»·¾³£ºWindows 7
Èí¼þ»·¾³£ºVisual C++ 2008 SP1 +SQL Server 2005
±¾´ÎÄ¿µÄ£º±àдһ¸öº½¿Õ¹ÜÀíϵͳ
ÕâÊÇÊý¾Ý¿â¿Î³ÌÉè¼ÆµÄ³É¹û£¬ËäÈ»³É¼¨²»¼Ñ£¬µ«ÊÇ×÷ΪÎÒÓÃVC++ ÒÔÀ´±àдµÄ×î´ó³ÌÐò»¹ÊÇ´«µ½ÍøÉÏ£¬ÒÔ¹©²Î¿¼¡£ÓÃVC++ ×öÊý¾Ý¿âÉè¼Æ²¢²»ÈÝÒ×£¬µ«Ò²²»ÊDz»¿ÉÄÜ¡£ÒÔÏÂÊÇÎҵijÌÐò½çÃæ£¬ºóÃæ ......
.NETÖÐC#µÄbyte¹Ø¼ü×ÖÓ³Éä.NETµÄByte½á¹¹£º±íʾһ¸ö 8 λÎÞ·ûºÅÕûÊý¡£Byte ÖµÀàÐͱíʾֵ½éÓÚ 0 ºÍ 255 Ö®¼äµÄÎÞ·ûºÅÕûÊý¡£
.NETÖÐC#µÄshort¹Ø¼ü×ÖÓ³Éä.NETÖеÄInt16£ºÓзûºÅ 16 λÕûÊý£¬-32,768 µ½ 32,767¡£
SQL SERVERÖеÄtinyint:´Ó 0 µ½ 255 µÄÕûÐÍÊý¾Ý¡£´æ´¢´óСΪ 1 ×Ö½Ú¡£
sbyte£º´æ´¢8λ´ø·ûºÅÕûÊý¡£sbyt ......
ÊÖ¶¯ÇåÀí
1¡¢´ò¿ª²éѯ·ÖÎöÆ÷£¬ÊäÈëÃüÁîDUMP TRANSACTION Êý¾Ý¿âÃû WITH NO_LOG
2¡¢ÔÙ´ò¿ªÆóÒµ¹ÜÀíÆ÷--ÓÒ¼üÄãҪѹËõµÄÊý¾Ý¿â--ËùÓÐÈÎÎñ--ÊÕËõÊý¾Ý¿â--ÊÕËõÎļþ--Ñ¡ÔñÈÕÖ¾Îļþ--ÔÚÊÕËõ·½Ê½ÀïÑ¡ÔñÊÕËõÖÁ: ,ÕâÀï»á¸ø³öÒ»¸öÔÊÐíÊÕËõµ½µÄ×îСMÊý,Ö±½ÓÊäÈëÕâ¸öÊý,È·¶¨¾Í¿ÉÒÔÁË¡£
Èç1)
×Ô¶¯ÇåÀí
ÆóÒµ¹ÜÀíÆ÷-¡·¹ÜÀí-¡·sql ......
ÓÐʱºò£¬ÔÚ¹¤×÷ÖлáÓöµ½½«Ò»¸öÊý¾Ý¿âÖбíµÄÊý¾Ýµ¼µ½ÁíÒ»¸öÊý¾Ý¿âµÄ±íÖУ¬µ«Êǹ¤¾ßÓÖûÓÐÌṩÕâÑùµÄ¹¦ÄÜ
ÏÂÃæÄÜͨ¹ýSQLÓï¾äÉú³ÉInsertÓï¾ä£¬ÔÙ²åÈëµ½ÁíÒ»¸öÊý¾Ý¿âÖС£
MSSQL:
SELECT 'INSERT INTO StatInfo(UserName,CardId,Address,WageCount,Pension)'+
' VALUES('''+a.UserName+''','''+a.CardId+''','''+a.Ad ......
ת×Ôhttp://lavasoft.blog.51cto.com/62575/23373
SQLÓïÑÔµÄCASEÓï¾ä±¸Íü
¸ÅÊö£º
SQLÓï¾äÖеÄCASEÓï¾äÓë¸ß¼¶ÓïÑÔÖеÄswitchÓï¾ä£¬ÊDZê×¼SQLµÄÓï·¨£¬ÊÊÓÃÓëÒ»¸öÌõ¼þÅжÏÓжàÖÖÖµµÄÇé¿öÏ·ֱðÖ´Ðв»Í¬µÄ²Ù×÷¡£Áé»îÓ¦ÓÃCASEÓï¾ä¿ÉÒÔʹSQLÓï¾ä±äµÃ¼ò½àÒ×¶Á£¬ÏÂÃæÔÚDB2»·¾³ÏÂͨ¹ýÒ»¸ö¼òµ¥µÄ²éѯÀ´Õ¹Ê¾SQL CASEÓ ......