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
1£©PL/SQLÊý¾ÝÀàÐÍ
Ãû³Æ
ÀàÐÍ
˵Ã÷
NUMBER
Êý×ÖÐÍ
ÄÜ´æ·ÅÕûÊýÖµºÍʵÊýÖµ£¬²¢ÇÒ¿ÉÒÔ¶¨Ò徫¶ÈºÍȡֵ·¶Î§
BINARY_INTEGER
Êý×ÖÐÍ
¿É´æ´¢´ø·ûºÅÕûÊý£¬ÎªÕûÊý¼ÆËãÓÅ»¯ÐÔÄÜ
DEC
Êý×ÖÐÍ
NUMBERµÄ×ÓÀàÐÍ£¬Ð¡Êý
DOUBLE PRECISION
Êý×ÖÐÍ
NUMBERµÄ×ÓÀàÐÍ£¬¸ß¾«¶ÈʵÊý
INTEGER
Êý×ÖÐÍ
NUMBERµÄ×ÓÀàÐÍ£¬ÕûÊý
INT
Êý ......
Ò»¡¢ ¼òµ¥²éѯ
¼òµ¥µÄTransact-SQL²éѯֻ°üÀ¨Ñ¡ÔñÁÐ±í¡¢from×Ó¾äºÍWHERE×Ӿ䡣ËüÃÇ·Ö±ð˵Ã÷Ëù²éѯÁС¢²éѯµÄ
±í»òÊÓͼ¡¢ÒÔ¼°ËÑË÷Ìõ¼þµÈ¡£
ÀýÈ磬ÏÂÃæµÄÓï¾ä²éѯtesttable±íÖÐÐÕÃûΪ“ÕÅÈý”µÄnickname×ֶκÍemail×ֶΡ£
SELECT nickname,email
from testtable
WHERE name='ÕÅÈý'
(Ò») Ñ¡ÔñÁбí
Ñ¡ÔñÁбí ......
¹ØÓÚÁ½±í¹ØÁªµÄupdate£¬µ«Óï¾äÔõôд¶¼²»ÕýÈ·£¬ÀÏÊDZ¨´í£¬ÓÚÊÇÐľªÈâÌø£¨¾ÍŲ»Äܼ°Ê±Íê³É²Ù×÷£©È¥²éÁËһϣ¬NND£¬ÔÀ´°ÑSQLд³ÉÁËÔÚSQL ServerÏÂÃæµÄÌØÓÐÐÎʽ£¬ÕâÖÖÓï·¨ÔÚOracleÏÂÃæÊÇÐв»Í¨µÄ£¬¼±Ã¦¸Ä»ØÀ´£¬¼°Ê±Íê³ÉÁËÈÎÎñ¡£Ë³±ãÒ²°Ñ²éµ½µÄSQLÌû³öÀ´£¬ÄÄÌìÔÙÍü¼ÇÁË£¬Ò²ºÃÔÚÕâÀïÕÒ»ØÀ´£º
update customers a ......
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 ......
ORA-24324: δ³õʼ»¯·þÎñ¾ä±ú
ORA-01041: ÄÚ²¿´íÎó, hostdef À©Õ¹Ãû²»´æÔÚ
¿´ÁËÒÔÏÂÎÄÕ£¬ÔòÐ޸쬵«Ð޸ĺóÎÞ·¨Æô¶¯listener£¬ÓÚÊÇÏëµ½ÔÚnet assistanceÖÐÐ޸ģ¬Íê³É£º
ÅäÖÃΪÒÔϲÅÄÜÕýÈ·Æô¶¯listener£º
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(S ......