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oracle olapº¯Êý£¨Ðø£©

/*connect byº¯Êý*/
CREATE TABLE TBL_TEST
(
  ID    NUMBER,
  NAME  VARCHAR2(100 BYTE),
  PID   NUMBER                                  DEFAULT 0
);
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('1','10','0');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('2','11','1');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('3','20','0');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('4','12','1');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('5','121','2');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('6','126','2');
INSERT INTO TBL_TEST(ID,NAME,PID) VALUES('7','127','1');
commit;
--´ÓRootÍùÊ÷Ä©Éҵݹé
select * from TBL_TEST
start with id=1
connect by prior id = pid
order by pid,id
--´ÓÄ©ÉÒÍùÊ÷ROOTµÝ¹é
select * from TBL_TEST
start with id=5
connect by prior pid=id
/*leadÏÂÒ»¸ö  lagÉÏÒ»¸ö*/
create table LEAD_TABLE
(
  CASEID     VARCHAR2(10),
  STEPID     VARCHAR2(10),
  ACTIONDATE DATE
);
  insert into LEAD_TABLE values('Case1','Step1',to_date('20070101','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step2',to_date('20070102','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step3',to_date('20070103','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step4',to_date('20070104','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step5',to_date('20070105','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step4',to_date('20070106','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step6',to_date('20070101','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case1','Step1',to_date('20070201','yyyy-mm-dd'));
  insert into LEAD_TABLE values('Case2','Step2',to_date('20070202','yyyy-mm-dd'));
  insert into LEAD_TABLE valu


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¡¶TOADÓëOracleÍŶӿª·¢Á÷³ÌÔÙÔì¡·¼¼Êõ½²×ù

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      ´ÓÊý¾Ý¿âµÄÉè¼Æ¡¢½¨Ä£¡¢±àÂ룬µ½Ó ......

oracleÖв鿴Óû§È¨ÏÞ

ORACLEÖÐÊý¾Ý×ÖµäÊÓͼ·ÖΪ3´óÀà,     ÓÃÇ°×ºÇø±ð£¬·Ö±ðΪ£ºUSER£¬ALL ºÍ DBA£¬Ðí¶àÊý¾Ý×ÖµäÊÓͼ°üº¬ÏàËÆµÄÐÅÏ¢¡£
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ALL_*£ºÓйØÓû§¿ÉÒÔ·ÃÎʵĶÔÏóµÄÐÅÏ¢£¬¼´Óû§×Ô¼º´´½¨µÄ¶ÔÏóµÄÐÅÏ¢¼ÓÉÏÆäËûÓû§´´½¨µÄ¶ÔÏ󵫸ÃÓû§ÓÐȨ·ÃÎʵÄÐÅÏ¢
DBA_* ......

oracleÖ®°Ñ±íÎļþµ¼³ö³ÉÎı¾Îļþ

1 spool
spool d:\test\table.dat
select * from table_name;
spool off
2 sqlplus user/password@sid @test.sql > table.dat
test.sql
     select * from table_name;
     exit; ......

oracle olapº¯Êý

/*sum()over()*/
--ĬÈϼÆËãËùÓÐÐеĺϼÆ
select t.empno,t.ename,t.sal,t.deptno,sum(t.sal)over()
from scott.emp t;
--partition by·Ö×éºÏ¼Æ
select t.empno,t.ename,t.sal,t.deptno,
       sum(t.sal)over(partition by t.deptno)
from scott.emp t
order by t.deptno,t.sal; ......
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