Oracle 파 티 션, 색인, 테스트 (1)

-----이번 에는 삽입 만 합 니 다. 어떻게 삽입 하 는 속도 가 빠 른 지 보 세 요.
 
 
준비 작업

--    
alter system set db_create_file_dest='d:\toby\oracle\data';
--   
create tablespace ts_sales_200901 datafile size 5M autoextend on ;
create tablespace ts_sales_200902 datafile size 5M autoextend on ;
create tablespace ts_sales_200903 datafile size 5M autoextend on ;
create tablespace ts_sales_200904 datafile size 5M autoextend on ;
create tablespace ts_sales_200905 datafile size 5M autoextend on ;
create tablespace ts_sales_200906 datafile size 5M autoextend on ;
create tablespace ts_sales_200907 datafile size 5M autoextend on ;
create tablespace ts_sales_200908 datafile size 5M autoextend on ;
create tablespace ts_sales_200909 datafile size 5M autoextend on ;
create tablespace ts_sales_200910 datafile size 5M autoextend on ;
create tablespace ts_sales_200911 datafile size 5M autoextend on ;
create tablespace ts_sales_200912 datafile size 5M autoextend on ;
create tablespace ts_sales_201001 datafile size 5M autoextend on ;
create tablespace ts_sales_201002 datafile size 5M autoextend on ;


create table city(
city_id number(10),
city		nvarchar2(30),
primary key(city_id)
);

create table employee(
EMPLOYEE_ID number(10),
FIRST_NAME		nvarchar2(30),
LAST_NAME		nvarchar2(30),
MANAGER_ID number(10),
primary key(EMPLOYEE_ID)
);

--- insert city  
--id  1 24
INSERT INTO CITY
SELECT ROWNUM,CITY FROM HR.LOCATIONS;

-- insert employee
--id  100 206
insert into employee
select   EMPLOYEE_ID,FIRST_NAME,LAST_NAME,MANAGER_ID  FROM HR.EMPLOYEES;


---   
create table sales_data(
sales_date date,
city_id		number(10),
employee_id	number(10),
sales_type  nvarchar2(30), 
sales_amount number(10)
)partition by range (sales_date)
(
partition sales_200901 values less than (to_date('2009-02-01','YYYY-MM-DD')) tablespace ts_sales_200901,
partition sales_200902 values less than (to_date('2009-03-01','YYYY-MM-DD')) tablespace ts_sales_200902,
partition sales_200903 values less than (to_date('2009-04-01','YYYY-MM-DD')) tablespace ts_sales_200903,
partition sales_200904 values less than (to_date('2009-05-01','YYYY-MM-DD')) tablespace ts_sales_200904,
partition sales_200905 values less than (to_date('2009-06-01','YYYY-MM-DD')) tablespace ts_sales_200905,
partition sales_200906 values less than (to_date('2009-07-01','YYYY-MM-DD')) tablespace ts_sales_200906,
partition sales_200907 values less than (to_date('2009-08-01','YYYY-MM-DD')) tablespace ts_sales_200907,
partition sales_200908 values less than (to_date('2009-09-01','YYYY-MM-DD')) tablespace ts_sales_200908,
partition sales_200909 values less than (to_date('2009-10-01','YYYY-MM-DD')) tablespace ts_sales_200909,
partition sales_200910 values less than (to_date('2009-11-01','YYYY-MM-DD')) tablespace ts_sales_200910,
partition sales_200911 values less than (to_date('2009-12-01','YYYY-MM-DD')) tablespace ts_sales_200911,
partition sales_200912 values less than (to_date('2010-01-01','YYYY-MM-DD')) tablespace ts_sales_200912,
partition sales_201001 values less than (to_date('2010-02-01','YYYY-MM-DD')) tablespace ts_sales_201001,
partition sales_201002 values less than (to_date('2010-03-01','YYYY-MM-DD')) tablespace ts_sales_201002
);


--           
create index index_sales_data_partition on sales_data (sales_date) local 
(
partition sales_200901 tablespace ts_sales_200901,
partition sales_200902 tablespace ts_sales_200902,
partition sales_200903 tablespace ts_sales_200903,
partition sales_200904 tablespace ts_sales_200904,
partition sales_200905 tablespace ts_sales_200905,
partition sales_200906 tablespace ts_sales_200906,
partition sales_200907 tablespace ts_sales_200907,
partition sales_200908 tablespace ts_sales_200908,
partition sales_200909 tablespace ts_sales_200909,
partition sales_200910 tablespace ts_sales_200910,
partition sales_200911 tablespace ts_sales_200911,
partition sales_200912 tablespace ts_sales_200912,
partition sales_201001 tablespace ts_sales_201001,
partition sales_201002 tablespace ts_sales_201002
);
---  
create bitmap index index_sales_data_sales_type on sales_data (sales_type) local ;
--    
create bitmap index index_sales_data_city on sales_data (city.city_id) 
from sales_data,city 
where sales_data.city_id=city.city_id
local ;


---          
create table sales_data1(
sales_date date,
city_id		number(10),
employee_id	number(10),
sales_type  nvarchar2(30), 
sales_amount number(10)
)partition by range (sales_date)
(
partition sales_200901 values less than (to_date('2009-02-01','YYYY-MM-DD')) tablespace ts_sales_200901,
partition sales_200902 values less than (to_date('2009-03-01','YYYY-MM-DD')) tablespace ts_sales_200902,
partition sales_200903 values less than (to_date('2009-04-01','YYYY-MM-DD')) tablespace ts_sales_200903,
partition sales_200904 values less than (to_date('2009-05-01','YYYY-MM-DD')) tablespace ts_sales_200904,
partition sales_200905 values less than (to_date('2009-06-01','YYYY-MM-DD')) tablespace ts_sales_200905,
partition sales_200906 values less than (to_date('2009-07-01','YYYY-MM-DD')) tablespace ts_sales_200906,
partition sales_200907 values less than (to_date('2009-08-01','YYYY-MM-DD')) tablespace ts_sales_200907,
partition sales_200908 values less than (to_date('2009-09-01','YYYY-MM-DD')) tablespace ts_sales_200908,
partition sales_200909 values less than (to_date('2009-10-01','YYYY-MM-DD')) tablespace ts_sales_200909,
partition sales_200910 values less than (to_date('2009-11-01','YYYY-MM-DD')) tablespace ts_sales_200910,
partition sales_200911 values less than (to_date('2009-12-01','YYYY-MM-DD')) tablespace ts_sales_200911,
partition sales_200912 values less than (to_date('2010-01-01','YYYY-MM-DD')) tablespace ts_sales_200912,
partition sales_201001 values less than (to_date('2010-02-01','YYYY-MM-DD')) tablespace ts_sales_201001,
partition sales_201002 values less than (to_date('2010-03-01','YYYY-MM-DD')) tablespace ts_sales_201002
);


--           
create index index_sales_data_partition_1 on sales_data1 (sales_date) local 
(
partition sales_200901 tablespace ts_sales_200901,
partition sales_200902 tablespace ts_sales_200902,
partition sales_200903 tablespace ts_sales_200903,
partition sales_200904 tablespace ts_sales_200904,
partition sales_200905 tablespace ts_sales_200905,
partition sales_200906 tablespace ts_sales_200906,
partition sales_200907 tablespace ts_sales_200907,
partition sales_200908 tablespace ts_sales_200908,
partition sales_200909 tablespace ts_sales_200909,
partition sales_200910 tablespace ts_sales_200910,
partition sales_200911 tablespace ts_sales_200911,
partition sales_200912 tablespace ts_sales_200912,
partition sales_201001 tablespace ts_sales_201001,
partition sales_201002 tablespace ts_sales_201002
);

--         
create table sales_data2(
sales_date date,
city_id		number(10),
employee_id	number(10),
sales_type  nvarchar2(30), 
sales_amount number(10)
);

--         2
create table sales_data3(
sales_date date,
city_id		number(10),
employee_id	number(10),
sales_type  nvarchar2(30), 
sales_amount number(10)
);

set serveroutput on
---     1  
  DECLARE
		
        MAXRECORDS CONSTANT INT:=10000000;
        sales_date int:=0 ;
		sales number:=0;
        I INT :=1;
        city_id int:=0 ;
        employee_id int:=0;
		sales_date1 nvarchar2(20):='';
    sales_month int:=0 ;
    begin
        FOR I IN 1..MAXRECORDS LOOP
		CITY_ID:= ABS(MOD(DBMS_RANDOM.RANDOM,24));
		employee_id:=ABS(MOD(DBMS_RANDOM.RANDOM,106))+100;
		SALES_DATE:=ABS(MOD(DBMS_RANDOM.RANDOM,28));
        sales_month :=ABS(MOD(DBMS_RANDOM.RANDOM,5));
         
	--    0
		while city_id=0 or SALES_DATE=0 or sales_month=0 loop 
        CITY_ID:= ABS(MOD(DBMS_RANDOM.RANDOM,24));
		sales_month :=ABS(MOD(DBMS_RANDOM.RANDOM,5));
        SALES_DATE:=ABS(MOD(DBMS_RANDOM.RANDOM,28));
        end loop;
        
		sales:=ABS(MOD(DBMS_RANDOM.RANDOM,100000));
		sales_date1:='2009-0'||to_char(sales_month)||'-'||to_char(sales_date);
    
		INSERT INTO SALES_DATA3 VALUES
		(to_date(sales_date1,'YYYY-MM-DD'),city_id,employee_id,'toby',sales);
			
        end loop;
    dbms_output.put_line('done!');
    commit;
    end;

 
지금. SALES_DATA 3 는 1 천만 데이터 로 1 월 에서 5 월 사이 에 분포 한다.
시계 세 개 
SALES_DATA     섹 션
SALES_DATA1   파 티 션
SALES_DATA2   파 티 션 없 음
 
 
총 세 번 뛰 어서 우연성 을 줄 이 고 최소 시간 을 갖 도록 하 겠 습 니 다.
 
그냥 삽입 을 먼저 하 겠 습 니 다.

--   167.218,137.045,135.247    135.247  
insert into SALES_DATA1
select * from SALES_DATA3 where sales_date<to_date ('2009-02-1' ,'yyyy-mm-dd');

  더욱 사용한다 nologging 해 봐.
 

--   203.28,189.064,167.993	  167.993  
alter table SALES_DATA1 nologging;
insert into SALES_DATA1
select * from SALES_DATA3 where sales_date<to_date ('2009-02-1' ,'yyyy-mm-dd');
alter table SALES_DATA1 logging;

 로 깅 보다 시간 이 더 많다 니.. 이론 적 으로 짧 을 거 야.. 어쨌든 nolog 는 티 가 안 나 요.
 
 다시 시도 해 보다 append
 

--   81.867 ,	89.569,84.574    	81.867  
insert /*+append*/ into SALES_DATA1
select * from SALES_DATA3 where sales_date<to_date ('2009-02-1' ,'yyyy-mm-dd');

 다른 거 해 봐. append + nologging
 
 

--   68.559,84.127,84.907      68.559  
insert /*+append*/ into SALES_DATA1 nologging
select * from SALES_DATA3 where sales_date<to_date ('2009-02-1' ,'yyyy-mm-dd') ;

 마치... 인 것 같다 append + nologging 중 nologging 이 야 말로 효과 가 있 습 니 다.
 
 
컴퓨터 쓰레기 를 병행 하면 예상 치 못 한 문구 가 붙는다.

alter table SALES_DATA3 parallel;
alter table SALES_DATA1 parallel;
alter table SALES_DATA1 nologging;
insert /*+append*/ into SALES_DATA1 
select /*+ parallel(t,2) */ * from SALES_DATA3 t where sales_date<to_date ('2009-02-1' ,'yyyy-mm-dd') ;

같은 비트 맵 이 insert 에 큰 영향 을 미 치 는 시간 은 몇 배 차이 가 날 수 있 습 니 다. 

alter index index_sales_data_partition modify partition sales_200903 unusable;
alter index INDEX_SALES_DATA_CITY modify partition sales_200903 unusable;
alter index INDEX_SALES_DATA_SALES_TYPE modify partition sales_200903 unusable;
    
-----insert    
-----      
alter index index_sales_data_partition rebuild partition sales_200903 NOLOGGING PARALLEL;
alter index INDEX_SALES_DATA_CITY rebuild partition sales_200903 NOLOGGING PARALLEL;
alter index INDEX_SALES_DATA_SALES_TYPE rebuild partition sales_200903 NOLOGGING PARALLEL;