Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

SQL Ìõ¼þÓï¾ä

µÚÒ»ÖÖ£º
SELECT
CASE

     WHEN
price IS NULL THEN
'Not yet priced'
     WHEN
price < 10 THEN
'Very Reasonable Title'
     WHEN
price >= 10 AND
price < 20 THEN
'Coffee Table Title'
     ELSE
'Expensive book!'
     END
AS
"Price Category",
     CONVERT(varchar(20), title) AS "Shortened Title"
from
pubs.dbo.titles
ORDER BY
price
 µÚ¶þÖÖ£º
SELECT au_fname, au_lname,
   CASE state
      WHEN 'CA' THEN 'California'
      WHEN 'KS' THEN 'Kansas'
      WHEN 'TN' THEN 'Tennessee'
      WHEN 'OR' THEN 'Oregon'
      WHEN 'MI' THEN 'Michigan'
      WHEN 'IN' THEN 'Indiana'
      WHEN 'MD' THEN 'Maryland'
      WHEN 'UT' THEN 'Utah'
      END AS StateName
from pubs.dbo.authors
ORDER BY au_lname
±¾ÎÄÀ´×ÔCSDN²©¿Í£¬×ªÔØÇë±êÃ÷³ö´¦£ºhttp://blog.csdn.net/hbzhangjian/archive/2006/07/31/1003684.aspx
SELECT top 2 id, uid,cn,
   CASE len(cn)
      WHEN 3 THEN 'California'
      WHEN 2 THEN 'Kansas'     
      END AS StateName
from conf_users


Ïà¹ØÎĵµ£º

ͨ¹ýpl/sql ½«oracle10Êý¾Ýµ¼Èëoracle9ÖÐ


1¡¢  ´ò¿ªpl/sql ÖÐtools-preferences£¬ÉèÖÃConnectionÖеÄOracle HomeΪoracle9£¬OCI libraryΪoracle9 Èçͼ
2¡¢
         ½«oralce10Ŀ¼ÏµÄtnsnames.oraÎļþÀïÃæµÄËùÒªµ¼³öµÄoralce10µÄ·þÎñÅäÖà ¸´ÖƵ½oracle9Ŀ¼ÏµÄtnsnames.oraÎļþÀïÃæ
ORCL =
  (DESCRIP ......

sqlÓï¾ä¶à±í²éѯ

ÎÊÌâ¼°ÃèÊö£º
--1.ѧÉú±í
Student(S#,Sname,Sage,Ssex) --S# ѧÉú±àºÅ,Sname ѧÉúÐÕÃû,Sage ³öÉúÄêÔÂ,Ssex ѧÉúÐÔ±ð
--2.¿Î³Ì±í
Course(C#,Cname,T#) --C# --¿Î³Ì±àºÅ,Cname ¿Î³ÌÃû³Æ,T# ½Ìʦ±àºÅ
--3.½Ìʦ±í
Teacher(T#,Tname) --T# ½Ìʦ±àºÅ,Tname ½ÌʦÐÕÃû
--4.³É¼¨±í
SC(S#,C#,score) --S# ѧÉú±àºÅ,C# ¿Î³Ì ......

SQL Server 2008±íÉè¼ÆÆ÷ÖÐÎÞ·¨±£´æÐÞ¸Ä

µ±Ê¹ÓÃMicrosoft SQL Server 2008 Management Studioʱ£¬ÓÐʱÔÚ±íÉè¼ÆÆ÷ÖжԱíËù×öµÄ¸ü¸ÄÎÞ·¨±£´æ£¬¾ßÌå±íÏÖΪ£ºµã»÷±£´æ°´Å¥ºóµ¯³ö±£´æ¶Ô»°¿òÌáʾ£º²»ÔÊÐí±£´æÐÞ¸Ä(Saving changes is not permitted)£¬µ¯³öµÄ¶Ô»°¿òÖ»ÓÐ2¸ö°´Å¥¿ÉÒÔµã»÷£¬Ò»¸öCancelÒ»¸öSave Text File£¬Ç°Ò»¸ö¾Í²»ÓÃ˵ÁË£¬ºóÒ»¸ö±£´æµÄÎļþ¸ù±¾Ã»ÒâÒ壨¿ÉÒ ......

SQL²éѯÊý¾Ý¿âÖÐÿÕűíµÄ¼Ç¼Êý

±¾ÎÄÀ´×Ô£ºhttp://hi.baidu.com/darkroot/blog/item/7b74be2cf06d76e78b139903.html
declare   @tbName     nvarchar(500)
declare   @ct      int  
declare   @csql   nvarchar(500)  
declare &n ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ