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

ÇósqlÓï¾ä

pln_id memo
  1    ÎÒÊÇ
  1    ÄãºÃ
  2    ÄãÊÇ
  2    ÎÒºÃ

½á¹û

  pln_id memo 
    1  ÎÒÊÇÄãºÃ
    2  ÄãÊÇÎÒºÃ
ÄãµÄOracle ʲô°æ±¾£¿

10g°¡

Äã×Ô¼º¾õµÃÓÐʲô¹æÂÉÂð?ÄãÌùµÄÊý¾Ý½öÊÇʾÀýÊý¾Ý°É

SQL code:

SQL> select * from t;

IDX NAME
--------------------------------------- ----------------------------------------
1 ÎÒÊÇ
1 ÉñÏÉ
2 ÎÒÊÇ
2 ÉñÏÉ

SQL>
SQL> select idx,replace(wmsys.wm_concat(name),',','') name from t
2 group by idx;

IDX NAME
--------------------------------------- --------------------------------------------------------------------------------
1 ÎÒÊÇÉñÏÉ
2 ÎÒÊÇÉñÏÉ

SQL>



ÒýÓÃ
SQL code
SQL>select*from t;

                                    IDX NAME------


Ïà¹ØÎÊ´ð£º

sql ʱ¼äÎÊÌâ

sql table±íÓиöÎı¾ÀàÐ͵Äa×ֶΣ¬´æ´¢µÄÄÚÈÝÈ«²¿ÊÇÊý×Ö£¬ÀýÈç2009001£¬2008578ÕâÑùµÄ¸ñʽ£»b×Ö¶ÎÎı¾ÀàÐÍ£¬´æµÄÒ²ÊÇÊý×ÖÀýÈç 001£¬123
aspÀïÃæ strday=100£¬strb=001

ÎÒÏë¶Á³ö£¬´Óa×ֶεÄÊý×Ö°´´óµ½Ð¡µÄË ......

sql server 2005 µÄÖØа²×°ÎÊÌâ

ÖØа²×°sql server 2005ʱ£¬ÔÚ°²×°µ½ÀàËÆdata base service µÄ·þÎñʱ×ÜÊdzöÏîwindows installer µÄ´íÎó¡£
ÎÒÔÚÍøÉϲéÁ˽â¾öµÄ°ì·¨£¬ÏÈÍ£ÁËÕâ¸ö·þÎñ£¬È»ºóÖØÐÂÏÂÔØ°²×°ÁËInstMsiW.exe£¬È»ºóÓÖÆô¶¯Õâ¸ö·þÎñ£¬µ«ÊDz ......

sql Óï¾äÓÅ»¯ ÎÊÌ⣿ ÇóÖú£¡

SELECT ×Ö¶Î1
  from ±í  WHERE (...) AND ×Ö¶Î1=function()

×Ö¶Î1ÓпÉÄܵÄÖµ Ϊ 0 »òÕß -1
  function ·µ»Ø 0 »òÕß -1

ÕâÑùµÄËÙ¶ÈÌ«ÂýÁË  Çë¸ßÊÖ°ïæ
¶¨£¡


ÎÒд³ ......

sql server2005¿ÉÒÔÓësql server 2000¹²´æÂð£¿

×îÏÈϵͳװÓÐsql2000£¬ÀïÃæÒ²ÔËÐÐÁ˺öàÍøÕ¾Êý¾Ý¿âÓ¦ÓóÌÐò£¬ÏÖÔÚÓиöÍøÕ¾ÐèÒªÅÜÔÚsql server2005ƽ̨ÉÏ£¬ÇëÎÊÎÒ¿ÉÒÔÖ±½ÓÔÚÕâ¸ö°²×°ÓÐsql server2000µÄ·þÎñÆ÷ÉÏÖ±½Ó°²×°sql server2005Â𣿻᲻»áÁ½¸ö°æ±¾µÄ·¢Éú¼æÈÝÐ ......

sqlÓï¾ä

1.´´½¨Ò»¸öÊý¾Ý¿âʱ
ÓдíÂð£¿Ëü×ÜÊÇÌáʾdbd.ldfÒѾ­´æÔÚ µ«ÊÇÔõô¸ÄÃû¶¼»¹ÊÇÒ»ÑùÌáʾ´æÔÚ
create database testdb
on primary
(name=db1,filename='e:\java\zy\dba.mdf',size=1,maxsize=5,file ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ