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name_ ,
(select count(id_) from  task where t.id_= substr(id_,0,INSTR((id_),'.',-1)-1) )  as  leaf,connect_by_isleaf from  task t 
  start with  t.id_ ='5' connect by prior
  t.id_= substr(t.id_,0,INSTR((t.id_),'.',-1)-1) order by t.id_


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Oracle sysdate ʱ¼äÂýÁË£¡

×î½ü·¢ÏÖÒ»¸öÎÊÌ⣬һ¸ö9iÅÜÔÚredhat5µÄ£¬¾ÓÈ» select sysdate from dual  ³öÀ´µÄʱ¼äºÍʵ¼Êʱ¼ä²îÁ˼¸·ÖÖÓ£¬ÒòΪ»ùÓÚÕâ¸öoracleµÄϵͳʱ¼äÕýÈ·ÐÔ»¹ÊÇÓеãÒªÇóµÄ¡£ËùÒÔÖ»ÄÜ #date -s 2010-2-10 8:55:00  ÁË£¬ÔÙ#clock -w дÈëCOMS ×¢ÒâÐÞ¸Äʱ¼äµÃÔÚrootÏ¡£
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declare
type name_arrary_type is varray(20) of varchar2(10);
name_arrary  name_arrary_type;
rowss int:=&ÊäÈëÒ³¼Ç¼Êý;
dpno int:=&ÊäÈ벿ÃźÅ;
v_count int:=0;
cursor  emp_cursor(dpno int) is select ename from emp where deptno=dpno; ......

ORACLEÈÕÆÚʱ¼äº¯Êý´óÈ«

TO_DATE¸ñʽ(ÒÔʱ¼ä:2007-11-02   13:45:25ΪÀý)
  
        Year:     
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groovy oracle date

There are lots of problems with Oracle DATE & TIMESTAMP and their
          counterpart Java classes since they do not directly compare. DATE fields
          in Oracle will give date & time where a ......
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