ºÜ¼òµ¥µÄORACLE²éѯÎÊÌâ - Oracle / »ù´¡ºÍ¹ÜÀí
SqlServerÖеIJéѯÓï¾äselect sid as 'ѧºÅ' from student
µ«ÊÇÔÚORACLEÖв»ÄÜÕâôд£¬
ÇëÎÊÔÚoracleÖÐÔõô¸ø²éѯ×ֶθ³¸ö±ðÃû£¿
SQL code:
select sid "ѧºÅ" from student;
select sid "ѧºÅ" from student
select sid as 'ѧºÅ' from student
È¥µôÒýºÅ
o ÖªµÀÀ²
ÔÀ´ÒªÓÃË«ÒýºÅ°¡
лл2λÀ² ûÈË10·Ö
СµÜ ֻѧ¹ýSQLSERVER
Ïà¹ØÎÊ´ð£º
ÎÒÊÇÓÃÔ¶³Ì×ÀÃæÁ¬²Ù×÷·þÎñÆ÷ÉϵÄÊý¾Ý¿â¡£
ÔÚ´´½¨Ò»¸öÓû§Ö®ºó£¬ÔÙÓÃPLSQLµÇ¼£¬ÔòPLSQLËÀµôÁË¡£
ÎҹصôPLSQLÖ®ºó£¬ÓÃÆäËûÓû§Ò²²»ÄܵǼ¡£
ÎÒ°ÑoracleµÄ·þÎñÍ£Ö¹£¬½á¹û¾ÍÊÇoracleµÄ·þÎñ״̬¾ÍÍ£ÁôÔÚ¡°Í ......
¼ÙÉètable01 ÖÐÓÐ ÒÔÏÂ×ÊÁÏ
emp_no emp_name
------- ------------
0001 TOM
0002 JOHN
0003 MARY
³£Óõ绰
¶øÎÒÃÇÒªµÃµ½ÒÔϵÄOUTPUT (»òÊǸ÷ÖÖÆäËûµÄoutput)
0001,TOM
0002,JOHN
......
ÎҵĴ¦ÀíÊÇÕâÑùµÄ£º
ÎÒÓÐÒ»¸öºÜ´óµÄÊý¾Ý¼¯ºÏ£¬´¦ÓÚÐÔÄÜ·½ÃæµÄ¿¼ÂÇÐèҪʹÓÃÁÙʱ±í¹ý¶É£¬²¢ÇÒʹÓ÷ÖÒ³µÄ·½Ê½ÏòÁÙʱ±íÖвåÈëÊý¾Ý£¬Êý¾ÝʹÓÃÍê±Ïºó£¬É¾³ýÁÙʱ±íµÄÊý¾Ý¡£
³öÏÖµÄÏÖÏ󣺵±OracleÖØÐÂÆô¶¯ºó£¬µÚÒ»Ò³²åÈëµÄ ......
×öÍædata guard ºó
ÔÚPrimary·þÎñÆ÷ Ö´ÐÐ
SQL>SELECT SEQUENCE#,APPLIED from V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# APP
---------- ---
13 NO
13 YES ......
CREATE OR REPLACE PROCEDURE usp_refreshTopN
IS
BEGIN
--Îĵµ
INSERT INTO topnresource(resourceId,title,type,cover,brief,properUser,tag,clickAmount,createDate,topNCreateDate,o ......