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

sqlÈçºÎ°Ñ±íÀïÖØÊý¾ÝÖ»ÁгöÒ»´Î

C# code:

string str;
sql = sql + "Spec.Spce_Coment like'%" + search_Text + "%'";
str = "select " + cas + " from [Spec] left join [Orders] on Spec.Spce_Order=Orders.Code_No " +


ÔÚÉÏÃæÁ½¸ö¹ØÁªµÄ±íÖÐ:
Orders×÷ΪÖ÷,Spec×÷Ϊ´Ó
ÏÖÔÚÏë²éѯÒÔOrdersΪÖ÷±íÖвé³öÓëOrders±íµÄ¹ØÁªSpec±íÖеÄËùÓÐÊý¾Ý..
µ«ÊÇÏÖÔÚ°ó¶¨datalist¿Ø¼þµÄʱºòËü»á°ÑÏàͬµÄÊý¾Ý°ó¶¨N´Î(Ëù²éѯµÄ¼Ç¼´ÎÊý)..

ÀýÈë:
ÎÒ²éѯ³öspec±íÖÐÓÐ15ÌõÓëOrders±íÖеÄ000001Êý¾ÝÓйØÁªÐÔ...
µ«ÊÇÔÚ°ó¶¨datalist¿Ø¼þµÄʱºòËü»á½øÐаó¶¨15´Î


ÈçºÎÉèÖóÉÖ»½øÐаÑ000001µÄÊý¾ÝÖ»°ó¶¨Ò»´Î

ÇëÎÊÕâÔõô½â¾ö°¡!

distinct


select distinct ×Ö¶Î from table


distinctÓÃÕâ¸ö

ºÃÏñ¿ÉÒÔ½â¾ö
µ«ÎÒ»¹ÊÇûÓнâ¾öµô,ÒòΪÎÒÇ°ÃæµÄ
C# code:

string cas = "(case Ready when 0 then '' when 1 then '<b><font color=\"#FF9900\" size=\"2\">R</font></b>' end) as Ready,Code_No,T_Color,Status,Type,Country,Pic,Name,Time,Paid,Memo,Total";
string str;
string sql;
sql = sql + "Spec.Spce_Coment like'%" + search_Text + "%'";
str = "select " + cas + " from [Spec] left join [Orde


Ïà¹ØÎÊ´ð£º

sqlÓï¾äÖÐÄܲ»ÄÜÕâÑùÅÅÐò£¿

Êý¾Ý±í¡¾biao¡¿£¬
×ֶΣºid¡¢myname¡¢mytxt
mytxtÄÚÈݸñʽÐÎÈ磺n|abcd¡££¨ÀýÈ磺1|ÁõµÂ»ª£¬2|Èδﻪ£¬3|αÌϼ£¬4|Âõ¿Ë@½Ü¿ËÑ·£©

ÎÒÏÖÔÚÏ£Íû¶Á¼Ç¼³öÀ´ºó£¬°´ÕÕ[mytxt]×Ö¶ÎÀïµÄÊúÏߣ¨|£©Ç°ÃæµÄÄǸöÊý× ......

ÇóÒ»¸ösql Óï¾ä

  table1
  Ãû³Æ      Èë¿âÊý
  CT»ú        3   
  CT»ú        5
  X¹â»ú      4 ......

sql¿ÉÒÔÓÐÁ½¸öÒÔÉϵĴ¥·¢Æ÷Â𣿣¿

sql¿ÉÒÔÓÐÁ½¸öÒÔÉϵĴ¥·¢Æ÷Â𣿣¿ÎÒÖ¸µÄÊÇfor´¥·¢Æ÷£¬ÄÇÆäËûµÄÄØ£¿£¿
ʲôÒâ˼£¿

¿ÉÒÔµÄ

10¸ö¶¼Ã»ÎÊÌâ

¿ÉÊÇÎÒдÁËÁ½¸öfor insert ´¥·¢Æ÷£¬Ôì³É½ø³Ì×èÈûÁËÄØ£¿Ôõô°ìÄØ£¿Çë¸ßÈËÖ¸µã
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ