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

ÇóÒ»ÌõsqlÓï¾ä ÈçºÎ±àд

ÎÒÓÐÁ½¸ö±í Ò»¸ö±íÊÇ dept  Ò»¸ö±íʽuser
dept±í°üº¬×Ö¶Î id deptname superiorid(Éϼ¶²¿ÃÅid)

user±í°üº¬×Ö¶Î id username deptid

Èç¹ûÎÒÏë²éѯһ¸ö²¿ÃŵÄËùÓÐÈËÔ± ¸ÃÔõôдÕâÌõÓï¾äÄØ£¿£¿

×¢£ºÀýÈçÒ»¸ö²¿ÃÅ idΪ3£¬ËüµÄÏÂÃæ»¹ÓÐÁ½¸ö×Ó²¿ÃÅ£¬Èç¹ûÎÒÏë²éѯ3µÄËùÓÐÈËÔ±°üº¬ÏÂÊô×Ó²¿ÃŵÄÈËÔ±£¬ÔõôдÕâÌõÓï¾äÄØ£¿
BOM

Ê÷Ðͽṹ£¬Èç¹û¶à²ãµÄ»°£¬¶ÔÓÚ2000£¬Óú¯Êý
Èç¹û2005+£¬¿ÉÒÔÓú¯Êý»òÕߵݹéµÄCTE£¬Ó¦¸Ã¿ÉÒÔÕÒµ½¾«»ªÌù


SQL code:


²éѯָ¶¨½Úµã¼°ÆäËùÓÐ×Ó½Úµã»ò¸¸½Úµã


IF OBJECT_ID('tb') IS NOT NULL DROP TABLE tb
GO
CREATE TABLE tb(id VARCHAR(3),pid VARCHAR(3),[name] VARCHAR(10))
GO
INSERT INTO tb SELECT '001',NULL,'ºÓÄÏÊ¡'
UNION ALL SELECT '002','001','ÂåÑôÊÐ'
UNION ALL SELECT '003','001','ÐÂÏçÊÐ'
UNION ALL SELECT '004','002','èï´¨ÏØ'
UNION ALL SELECT '005','003','³¤Ô«ÏØ'
UNION ALL SELECT '006','002','ÃϽòÏØ'
UNION ALL SELECT '007','004','ÀäË®Ïç'
UNION ALL SELECT '008','004','½ÐºÓÏç'
UNION ALL SELECT '009','008','A´å'
UNION ALL SELECT '010','008','B´å'
GO
/*
1¡¢²éѯָ¶¨½Úµã¼°ÆäËùÓÐ×Ó½Úµã
--È磺ÒÑÖª èï´¨ÏØ
--µÃµ½½á¹û

id pid name
---- ---- ----------
004 002 èï´¨ÏØ
007 004 ÀäË®Ïç
008 004 ½ÐºÓÏç
009 008 A´å
010 008 B´å
*/

****************************²éѯ¿ªÊ¼******************************
--SQL2005 ʹÓÃCTE
DECLARE @ VARCHAR(10)
SET @='èï´¨ÏØ'


Ïà¹ØÎÊ´ð£º

Çë½ÌsqlÓï¾ä¡£ - Oracle / ¿ª·¢

ÎÒÓÐÒ»¸ö±í£¬½á¹¹ÊÇÕâÑù¡£
  ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
2009 1 2 1 500 Ϊ 1 µ¥Î» ÔÚ2009Ä ......

sqlССµÄÒÉÎÊ - .NET¼¼Êõ / C#

¿ÉÄÜÒòΪ¹¤×÷µÄÔ­Òò ½Ó´¥Êý¾Ý¿âÕâ¿é±È½ÏÉÙ£¬Ö®Ç°¶¼ÊÇ×ö³ÌÐòÕâ¿é£¬Êý¾Ý¿âÕâ¿é¶¼ÓÐרÃŵÄÈËÀ´×ö ·Ö¹¤¶¼ºÜÃ÷ϸ ËùÒÔ¶ÔÊý¾Ý¿âÕâÒ»¿éÍêÈ«²»Á˽⡣ǰ¶Îʱ¼ä È¥ÃæÊÔÁ˼¸¼Ò¹«Ë¾ ¼¸ºõ¶¼ÊÇÔÚÊý¾Ý¿âÕâ¿é¹ÒµôµÄ Á¬¸ö¼òµ¥µÄSQ ......

ÇóÒ»sqlÓï¾ä - MS-SQL Server / ÒÉÄÑÎÊÌâ

ÏÖÔÚÓÐÁ½ÕÅ±í£ºÎÄÕÂÖ÷±íA(articleId,articleTitle)£¬ÎÄÕÂÆÀÂÛ±íB(commentId,articleId,commentTitle)
ÏÖÔÚÎÒÏëʵÏÖÕâÑùµÄ¹¦ÄÜ£ºÁгöÎÄÕÂÁÐ±í£¬ÆäÖÐÿƪÎÄÕ±êÌâÏÂÃæÁгö´ËÎÄÕµÄǰ2¸öÎÄÕÂÆÀÂÛ£¬ÇëÎÊsqlÓï¾äÔõôд°¡ ......

SQL clr - MS-SQL Server / ·Ç¼¼Êõ°æ

ÏëÓÃSQL CLR×öÈçϵĴ洢¹ý³Ì,µ«ÊÇ·¢ÏÖ±¨´í: 
{ÓÉÓÚ´úÂëÒѾ­¹ýÓÅ»¯»òÕß±¾»ú¿ò¼ÜλÓÚµ÷ÓöÑÕ»Ö®ÉÏ£¬ÎÞ·¨¼ÆËã±í´ïʽµÄÖµ¡£} 
¶øÇÒÈç¹ûÊý¾Ý´Ócase 1ͨ¹ýʱ¾ÍÊÇÕýÈ·µÄ,´Ócase 2ͨ¹ýʱ´íÎó 
²¢ÇÒÔÚc ......

ÇóÒ»sqlÓï¾ä - MS-SQL Server / »ù´¡Àà

±í
id bh  
1 10
2 11
3 12 
4 15
5 16
6 22
7 25
8 26
9 27
10 28
½«bh°´Á¬Ðø·Ö¶Î³öÀ´·µ»Ø×Ö·û´®£º
10~12£¬15~16£¬22£¬25~28
SQL code:


declare @t tabl ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ