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

SQL ServerºÍOracleµÄ³£Óú¯Êý¶Ô±È

---------Êýѧº¯Êý
1.¾ø¶ÔÖµ
S:select abs(-1) value
O:select abs(-1) value from dual
2.È¡Õû(´ó)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.È¡Õû£¨½ØÈ¡£©
S:select cast(-1.002 as int) value
O:select trunc(-1.002) value from dual
5.ËÄÉáÎåÈë
S:select round(1.23456,4) value 1.23460
O:select round(1.23456,4) value from dual 1.2346
6.eΪµ×µÄÃÝ
S:select Exp(1) value 2.7182818284590451
O:select Exp(1) value from dual 2.71828182
7.È¡eΪµ×µÄ¶ÔÊý
S:select log(2.7182818284590451) value 1
O:select ln(2.7182818284590451) value from dual; 1
8.È¡10Ϊµ×¶ÔÊý
S:select log10(10) value 1
O:select log(10,10) value from dual; 1
9.ȡƽ·½
S:select SQUARE(4) value 16
O:select power(4,2) value from dual 16
10.ȡƽ·½¸ù
S:select SQRT(4) value 2
O:select SQRT(4) value from dual 2
11.ÇóÈÎÒâÊýΪµ×µÄÃÝ
S:select power(3,4) value 81
O:select power(3,4) value from dual 81
12.È¡Ëæ»úÊý
S:select rand() value
O:select sys.dbms_random.value(0,1) value from dual;
13.È¡·ûºÅ
S:select sign(-8) value -1
O:select sign(-8) value from dual -1
----------Èý½Çº¯ÊýÏà¹Ø
14.Ô²ÖÜÂÊ
S:SELECT PI() value 3.1415926535897931
O:²»ÖªµÀ
15.sin,cos,tan ²ÎÊý¶¼ÒÔ»¡¶ÈΪµ¥Î»
ÀýÈ磺select sin(PI()/2) value µÃµ½1£¨SQLServer£©
16.Asin,Acos,Atan,Atan2 ·µ»Ø»¡¶È
17.»¡¶È½Ç¶È»¥»»(SQLServer£¬Oracle²»ÖªµÀ)
DEGREES£º»¡¶È-¡µ½Ç¶È
RADIANS£º½Ç¶È-¡µ»¡¶È
---------ÊýÖµ¼ä±È½Ï
18. Ç󼯺Ï×î´óÖµ
S:select max(value) value from
(select 1 value
union
select -2 value
union
select 4 value
union
select 3 value)a
O:select greatest(1,-2,4,3) value from dual
19. Ç󼯺Ï×îСֵ
S:select min(value) value from
(select 1 value
union
select -2 value
union
select 4 value
union
select 3 value)a
O:select least(1,-2,4,3) value from dual
20.ÈçºÎ´¦ÀínullÖµ(F2ÖеÄnullÒÔ10´úÌæ)
S:select F1,IsNull(F2,10) value from Tbl
O:select F1,nvl(F2,10) value from Tbl
--------×Ö·û´®º¯Êý
21.Çó×Ö·ûÐòºÅ
S:select asci


Ïà¹ØÎĵµ£º

¾«ÃîSQLÓï¾äѧϰ

SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
1¡¢ËµÃ÷£º´´½¨Êý¾Ý¿â
CREATE DATABASE database-name
2¡¢ËµÃ÷£ºÉ¾³ýÊý¾Ý¿â
drop database dbname ......

SQLÐÐÁеÄת»»

/*
±êÌ⣺ÆÕͨÐÐÁÐת»»(version 2.0)
×÷Õߣº°®Ð¾õÂÞ.ع»ª
ʱ¼ä£º2008-03-09
µØµã£º¹ã¶«ÉîÛÚ
˵Ã÷£ºÆÕͨÐÐÁÐת»»(version 1.0)½öÕë¶Ôsql server 2000Ìṩ¾²Ì¬ºÍ¶¯Ì¬Ð´·¨£¬version 2.0Ôö¼Ósql server 2005µÄÓйØÐ´·¨¡£
ÎÊÌ⣺¼ÙÉèÓÐÕÅѧÉú³É¼¨±í(tb)ÈçÏÂ:
ÐÕÃû ¿Î³Ì ·ÖÊý
ÕÅÈý ÓïÎÄ 74
ÕÅÈý Êýѧ 83
ÕÅÈý ÎïÀí 93 ......

sqlµÄ¼¸¸öÅÅÐòº¯Êý

1ÓÃÓÚÅÅÐòµÄº¯Êý
row_number()
rank()
dense_rank()
ntile(group_number)
ÏÂÃæÁоÙÕâ¸öº¯ÊýµÄÓ÷¨£º
row_number()º¯ÊýÒ»°ãÓÃÓÚ×éÄÚÅÅÐò£¬¶øÆäËûÈý¸öº¯ÊýÊǶԽá¹û¼¯ÅÅÐò
Àý×Ó£º·ÖÒ³ÅÅÐò
<!--×¢ÒâÈ«¾Ö±äÁ¿Ò²ÔÚÕâÀïÉùÃ÷£¬²¢ÓöººÅ¸ô¿ª-->
create proc MyDividePageSort @iRowCount int ,@iPageNo int
AS
< ......

oracle 10G ÎﻯÊÓͼÐÂÌØÐÔ(²âÊÔЧ¹û²»ÀíÏë)

http://mrhaozi.itpub.net/post/41048/495175
ÎﻯÊÓͼ
ÀûÓÃÇ¿ÖÆ²éÑ¯ÖØÐ´ºÍеÄÇ¿´óµÄµ÷Õû¹ËÎʳÌÐò — ËüÃÇʹÄú²»ÔÙÐèҪƾ²Â²â½øÐй¤×÷ — µÄÒýÈ룬ÔÚ 10g ÖйÜÀíÎﻯÊÓͼ±äµÃ¸ü¼ÓÈÝÒ×
ÎﻯÊÓͼ (MV) — Ò²³ÆÎª¿ìÕÕ — Ò»¶Îʱ¼äÀ´ÒѾ­¹ã·ºÊ¹Óá£MV ÔÚÒ»¸ö¶ÎÖд洢²éѯ½á¹û£¬²¢ÇÒÄܹ»ÔÚÌá½»²éѯ ......

ÓÃradiusºÍoracle×öÈÏÖ¤¼Æ·Ñϵͳ


Redhat
as4 + oracle 10g(10.2.0)
+ freeradius1.1.2+ tomcat5.5
*****************************
±¾ÎÄĿ¼
********************************
Ò»¡¢°²×°
redhat as4
¶þ¡¢°²×°
oracle 10g
£¨
10201_database_linux32.zip
£©
   
£¨Ò»£©¼ì²é
oracle 10g
ËùÐèµÄ°ü×é¼þ£º
£¨¶þ£©ÉèÖÃϵͳ²ÎÊ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ