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

.netÁ¬½ÓÊý¾Ý¿â£¬Ö´ÐÐsql½Å±¾

1¡¢¶¨ÒåÖ¸Á£ºusing System.Data.SqlClient;
2¡¢¶¨ÒåsqlÁ¬½Ó£º SqlConnection conn= new SqlConnection("server=(local);database=colorring;uid=sa;pwd=;");
3¡¢´ò¿ªsqlÁ¬½Ó£º conn.Open();
4¡¢¶¨ÒåsqlÓï¾ä£ºstring sqlstr = "insert into test values (123321)";
5¡¢×é×°sqlÓï¾äºÍÁ¬½Ó£ºSqlCommand cmd = new SqlCommand(sqlstr,conn);
6¡¢Ö´ÐÐsqlÃüÁint result=cmd.ExecuteNonQuery();
7¡¢¹Ø±ÕsqlÁ¬½Ó£ºconn.Close();
8¡¢ÏÔʾ¸üеÄÊýÁ¿£º  Label1.Text =Convert.ToString(result);
´úÂëÈçÏ£º
        using System.Data.SqlClient;
        SqlConnection conn= new SqlConnection("server=(local);database=colorring;uid=sa;pwd=;");
        conn.Open();
        string sqlstr = "insert into test values (123321)";
        SqlCommand cmd = new SqlCommand(sqlstr,conn);
        int result=cmd.ExecuteNonQuery();
        conn.Close();
        Label1.Text =Convert.ToString(result);


Ïà¹ØÎĵµ£º

SQL ServerÖС°¼ÓËøÑ¡ÏµÄ¹¦ÄÜ˵Ã÷

1   ÈçºÎËøÒ»¸ö±íµÄijһÐÐ  
   
   
  A   Á¬½ÓÖÐÖ´ÐÐ  
   
  SET   TRANSACTION   ISOLATION   LEVEL   REPEATABLE   READ  
   
  begin   tran  
   
  selec ......

SQLÓï¾ä¼ÓÈëorder by ×Ó¾äÖ®ºóµÄЧÂÊÎÊÌâ

ÔÚÊý¾Ý¿âÖÐÓÐÒ»Õűímytable£¬Êý¾Ý¼Ç¼7000ÍòÌõ£¬ÓÐÈçÏÂÁ½ÌõSQLÓï¾ä
1.
select top 100 * from mytable order by operateDate
2.
select * from (select top 100 * from mytable ) a   order  by a.operateDate
      Æð³õÎÒʹÓõÚÒ»ÌõÓï¾ä²éѯÊý¾Ý£¬²¢Ï£Íû½«µÃµ½µÄ ......

SQLÖÐ CAST Óë CONVERTת»¯º¯ÊýµÄÓ÷¨

 ½«Ä³ÖÖÊý¾ÝÀàÐ͵ıí´ïʽÏÔʽת»»ÎªÁíÒ»ÖÖÊý¾ÝÀàÐÍ¡£CAST ºÍ CONVERT ÌṩÏàËÆµÄ¹¦ÄÜ¡£
Óï·¨
ʹÓà CAST£º
CAST ( expression AS data_type )
ʹÓà CONVERT£º
CONVERT (data_type[(length)], expression [, style])
²ÎÊý
expression
ÊÇÈκÎÓÐЧµÄ Microsoft® SQL Server™ ±í´ïʽ¡£Óйظü¶àÐÅÏ¢£¬Çë² ......

¹ØÓÚsql server ´úÀí£¨ÒѽûÓôúÀíxp£©

Ö¢×´£º
SQL SERVER2005ÀïÃæ£¬Æô¶¯SQL´úÀí·þÎñ£¬Æô¶¯Õý³££¬µ«ÊÇÔÚsql server ´úÀí»¹ÊÇÏÔʾÒѽûÓôúÀí xp
ÔÚManagement StudioÖÐн¨Î¬»¤¼Æ»®Ê±£¬ÌáʾÒÔÏ´íÎóÐÅÏ¢£º
“´úÀíXP”×é¼þÒÑ×÷Ϊ´Ë·þÎñÆ÷°²È«ÅäÖõÄÒ»²¿·Ö±»¹Ø±Õ¡£ÏµÍ³¹ÜÀíÔ±¿ÉÒÔʹÓÃsp_configureÀ´ÆôÓÓ´úÀíXP”¡£ÓÐ¹ØÆôÓÓ´úÀíXP ......

ÓαêÊôÐÔSQL%FOUND,SQL%NOTFOUND,SQL%ROWCOUNT

¡¡¡¡µ±Ö´ÐÐÒ»ÌõDMLÓï¾äºó£¬DMLÓï¾äµÄ½á¹û±£´æÔÚËĸöÓαêÊôÐÔÖУ¬ÕâЩÊôÐÔÓÃÓÚ¿ØÖƳÌÐòÁ÷³Ì»òÕßÁ˽â³ÌÐòµÄ״̬¡£µ±ÔËÐÐDMLÓï¾äʱ£¬PL/SQL´ò¿ªÒ»¸öÄÚ½¨Óα겢´¦Àí½á¹û£¬ÓαêÊÇά»¤²éѯ½á¹ûµÄÄÚ´æÖеÄÒ»¸öÇøÓò£¬ÓαêÔÚÔËÐÐDMLÓï¾äʱ´ò¿ª£¬Íê³Éºó¹Ø±Õ¡£ÒþʽÓαêֻʹÓÃSQL%FOUND,SQL%NOTFOUND,SQL%ROWCOUNTÈý¸öÊôÐÔ.SQL%FOUND,SQ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ