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declare cursor myCursor is select * from ±íÃû;
myRow myCursor%rowtype;
begin
open myCursor;
loop
fetch myCursor into myRow;
exit when myCursor%notfound;
--ÒªÖ´ÐеÄSQLÓï¾ä
end loop;
end;


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ORACLE±¸·Ý²ßÂÔ(ORACLE BACKUP STRATEGY)
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/*connect byº¯Êý*/
CREATE TABLE TBL_TEST
(
  ID    NUMBER,
  NAME  VARCHAR2(100 BYTE),
  PID   NUMBER                          ......

Oracle ±íÁ¬½Ó·½Ê½½éÉÜ£¨SML + NL + HJ£©

JoinÊÇÒ»ÖÖÊÔͼ½«Á½¸ö±í½áºÏÔÚÒ»ÆðµÄν´Ê£¬Ò»´ÎÖ»ÄÜÁ¬½Ó2¸ö±í£¬±íÁ¬½ÓÒ²¿ÉÒÔ±»³ÆÎª±í¹ØÁª¡£ÔÚºóÃæµÄÐðÊöÖУ¬ÎÒÃǽ«»áʹÓÔrow source”À´´úÌæ”±í”£¬ÒòΪʹÓÃrow source¸üÑϽ÷һЩ£¬²¢ÇÒ½«²ÎÓëÁ¬½ÓµÄ2¸örow source·Ö±ð³ÆÎªrow source1ºÍrow source 2¡£Join¹ý³ÌµÄ¸÷¸ö²½Öè¾­³£ÊÇ´®ÐвÙ×÷£¬¼´Ê¹Ïà¹ØµÄr ......

Oracle ²éѯ²¢É¾³ýÖØ¸´¼Ç¼µÄSQLÓï¾ä


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select * from people
where peopleId in (select   peopleId from   people group by   peopleId having count(peopleId) > 1)
 
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