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

EXCELתÊý¾Ýµ½SQL(ÒÑÓбí½á¹¹)

insert into Country123 ([Country_Id], [Region_ID], [Country_EN_Name], [Country], [Country_ALL_ID], [Country_Order_Id]) select [Country_Id], [Region_ID], [Country_EN_Name], [Country], [Country_ALL_ID], [Country_Order_Id] from openrowset( 'Microsoft.Jet.OLEDB.4.0', 'EXCEL 5.0;HDR=YES;IMEX=1; DATABASE=C:\Documents and Settings\Administrator.SM-8K7POQCBNFWO\My Documents\Google Talk Received Files\12-24.XLS',Country)


Ïà¹ØÎĵµ£º

sql—datediff º¯Êý


 
DATEDIFF
   ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈÕÆÚºÍʱ¼ä±ß½çÊý¡£
   
   Ò»¡¢ Óï·¨ 
   DATEDIFF ( datepart , startdate , enddate ) 
    
   ¶þ¡¢²ÎÊý
   datepar ......

SQLʱ¼äº¯ÊýÏê½â

1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate() 
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐµĠdatetime Öµ
ÀýÈ磺ÏòÈÕÆÚ¼ÓÉÏ2Ìì
select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈÕÆÚºÍʱ¼ä ......

PL/SQL DEVELOPER »ù±¾Ó÷¨Ïê½â£¨×ª£©

PL/SQL DEVELOPER »ù±¾Ó÷¨Ïê½â(½¨Òéд¹ýµÚÒ»¸ö´æ´¢¹ý³ÌºóµÄ³õÊֱضÁ)
  
ÓùýoracleµÄ¶¼±§Ô¹£¬ÎªÁËÎȶ¨ ËüÌṩµÄͼÐλ¯²Ù×÷ ËÙ¶ÈÂýµÄÈÃÈËÉËÐÄѽ£¬p4+128MµÄ»úÆ÷Ö»ÒªÆô¶¯Ò»¸ö
  
oracle·þÎñ¾Í¹»ÈÃÈËÉËÐĵģ¬ÔÙÔÚdba studioÀïÃæ²Ù×÷ÕæÄÜÈÃÈ˿ޡ£
  pl/sql developerÕýÊǽâ¾öÕâ¸öÎÊÌâµ ......

¡¾×ªÌû¡¿SQL Oracleɾ³ýÖØ¸´¼Ç¼

1.Oracleɾ³ýÖØ¸´¼Ç¼.
ɾ³ý±íÖжàÓàµÄÖØ¸´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ¥¸ö×ֶΣ¨peopleId£©À´Åжϣ¬Ö»ÁôÓÐrowid×îСµÄ¼Ç¼.
delete from people
where peopleId  in (select  peopleId  from people  group  by  peopleId   having  count(peopleId) > 1)
and rowid not i ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ