易截截图软件、单文件、免安装、纯绿色、仅160KB

Oracle分析函数(同比,环比,累计,基比)

CREATE TABLE salaryByMonth
(
 employeeNo varchar2(20),
 yearMonth varchar2(6),
 salary number
) ;
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200805', 500);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200802', 150);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200803', 200);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200804', 300);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200708', 100);
commit;
SELECT EMPLOYEENO
      ,YEARMONTH
      ,SALARY
      ,MIN(SALARY) KEEP(DENSE_RANK FIRST ORDER BY YEARMONTH) OVER(PARTITION BY EMPLOYEENO) FIRST_SALARY -- 基比分析 salary/first_salary
      ,LAG(SALARY, 1, 0) OVER(PARTITION BY EMPLOYEENO ORDER BY YEARMONTH) AS PREV_SAL -- 环比分析,与上个月份进行比较
      ,LAG(SALARY, 12, 0) OVER(PARTITION BY EMPLOYEENO ORDER BY YEARMONTH) AS PREV_12_SAL -- 同比分析,与上个年度相同月份进行比较   
      ,SUM(SALARY) OVER(PARTITION BY EMPLOYEENO, SUBSTR(YEARMONTH, 1, 4) ORDER BY YEARMONTH RANGE UNBOUNDED PRECEDING) LJ --累计值
  from SALARYBYMONTH
 ORDER BY EMPLOYEENO
         ,YEARMONTH


相关文档:

oracle 表空间操作

oracle表空间操作详解
  1
  2
  3作者:   来源:    更新日期:2006-01-04 
  5
  6 
  7建立表空间
  8
  9CREATE TABLESPACE data01
 10DATAFILE '/ora ......

oracle xunhuan

测试table
create table table1 (id int,name char)
insert into table1
select 1,'q'
union all select 2,'r'
union all select 3,'3'
union all select 4,'5'
要求按指定的id顺序(比如2,1,4,3)排列获取table1的数据
方法1:使用union all,但是有256条数据的限制
select id,name from table1 where id=2
union al ......

oracle系统表空间system和sysaux使用率很高


使用
set
pagesize 1000
set
linesize 132
col
TS_NAME form a24
col
PIECES form 9999
col
PCT_FREE form 999.9
col
PCT_USED form 999.9
select
*
 
from (select Q2.OTHER_TNAME TS_NAME,
              
PIECES,
& ......

oracle job解决问题汇总

一。job的运行频率设置
1.每天固定时间运行,比如早上8:10分钟:Trunc(Sysdate+1) + (8*60+10)/24*60
2.Toad中提供的:
每天:trunc(sysdate+1)
每周:trunc(sysdate+7)
每月:trunc(sysdate+30)
每个星期日:next_day(trunc(sysdate),'SUNDAY')
每天6点:trunc(sysdate+1)+6/24
半个小时:sysdate+30/1440
3.每个 ......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号