oracle怎么汇总月份 oracle按月份统计
在oracle中我有一个月份的字段（month） 现在我要根据月份进行汇总怎么做
--按照楼主的意思 楼主应该有两个疑问 一个是分组汇总 一个是在正常的日期取出年月
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--帮你写好 有什么问题可以随时问我
select to_char(日期字段,'yyyy-mm') as 年月,count(1) as 天数 from 表名
group by to_char(日期字段,'yyyy-mm') ;
oracle中group by按月分组统计
创建测试表
create table test
(姓名 varchar2(10),
访问时间 date,
进入时间 date,
离开时间 date);
insert into test values ('张三',to_date('2013-02-03 15:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-03 15:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-03 15:33:22','yyyy-mm-dd hh24:mi:ss'));
insert into test values ('李四',to_date('2013-02-04 15:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-04 18:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-04 18:53:22','yyyy-mm-dd hh24:mi:ss'));
insert into test values ('王武',to_date('2013-02-04 15:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-05 17:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-05 18:23:22','yyyy-mm-dd hh24:mi:ss'));
insert into test values ('张三',to_date('2013-02-04 15:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-06 11:23:22','yyyy-mm-dd hh24:mi:ss'),to_date('2013-02-06 14:23:22','yyyy-mm-dd hh24:mi:ss'));
运行
select 姓名,
to_char(访问时间,'yyyy-mm') 访问月份,
to_char(trunc(round(sum(离开时间-进入时间)*1440)/60))||'小时'||to_char(round(sum((离开时间-进入时间)*1440))-trunc(round(sum(离开时间-进入时间)*1440)/60)*60)||'分钟' 时间汇总,
count(*) 访问次数 from test
group by 姓名,to_char(访问时间,'yyyy-mm');
结果
oracle列出指定时间范围内的所有月份？
这是递归写法的问题，在8,9i升级新版本过程中经常遇到类似问题.这个在10g,11g以后跑应该都没问题,在9i按以下方法写可以实现:
SELECT TO_CHAR (ADD_MONTHS (TO_DATE ('2011-03', 'yyyy-mm'), ROWNUM - 1),'YYYY-MM') AS yearmonth FROM all_objects
WHERE ROWNUM =(SELECT MONTHS_BETWEEN (TO_DATE ('2012-07', 'yyyy-mm'),TO_DATE ('2011-03', 'yyyy-mm')) FROM DUAL)
oracle给一个时间段,如何得到各月份及天数
select to_char(last_day(sysdate),'dd') from dual
也可以将sysdate替换为任意时间,以计算当天所在月份天数。
oracle 统计每年每月数据
第一步：创建表
--支出表
create table PAY
(
ID NUMBER(11) not null,
PAY_NAME VARCHAR2(100),
AUTHOR VARCHAR2(100),
TYPE_ID NUMBER(11),
PRICE FLOAT, --金额
BRIEF VARCHAR2(1000),
USERID NUMBER(11), --用户ID
TIMES DATE, --时间
PRIMARY KEY(ID)
)
第二步：插入数据
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (1, '1', '1', 0, 1, '1', 1, to_date('12-10-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (0, '3', '3', 1, 3, '3', 1, to_date('12-10-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (2, '2', '2', 1, 2, '2343444', 1, to_date('12-10-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (6, '6', '1', 0, 4000, '1', 1, to_date('12-08-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (5, '5', '1', 0, 1, '1', 1, to_date('12-10-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (4, '4', '1', 0, 100, '1', 1, to_date('12-09-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (7, '4', '1', 0, 566, '1', 1, to_date('03-03-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (11, '4', '1', 0, 566, '1', 1, to_date('03-04-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (10, '4', '1', 0, 566, '1', 1, to_date('03-05-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (9, '4', '1', 0, 566, '1', 1, to_date('03-06-2012', 'dd-mm-yyyy'));
insert into PAY (ID, PAY_NAME, AUTHOR, TYPE_ID, PRICE, BRIEF, USERID, TIMES)
values (8, '4', '1', 0, 566, '1', 1, to_date('03-07-2012', 'dd-mm-yyyy'));
commit;
第三步：执行分组查询
SELECT SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 1, B.PRICE, 0)) AS A,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 2, B.PRICE, 0)) AS B,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 3, B.PRICE, 0)) AS C,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 4, B.PRICE, 0)) AS D,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 5, B.PRICE, 0)) AS E,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 6, B.PRICE, 0)) AS F,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 7, B.PRICE, 0)) AS G,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 8, B.PRICE, 0)) AS H,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 9, B.PRICE, 0)) AS I,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 10, B.PRICE, 0)) AS J,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 11, B.PRICE, 0)) AS K,
SUM(DECODE(EXTRACT(MONTH FROM B.TIMES), 12, B.PRICE, 0)) AS L
FROM PAY B
WHERE USERID = 1
AND EXTRACT(YEAR FROM B.TIMES) = '2012'
第四步：输出结果
Oracle中的SQL查询语句：如何按照表中不同部门，按照录入时间分12个月份统计求和。
--希望解决了楼主的问题
select bm,sum(case when to_char(time,'MM')='01' then fz else 0 end ) 1月份fz合计,
sum(case when to_char(time,'MM')='02' then fz else 0 end ) 2月份fz合计,
sum(case when to_char(time,'MM')='03' then fz else 0 end ) 3月份fz合计,
sum(case when to_char(time,'MM')='04' then fz else 0 end ) 4月份fz合计,
sum(case when to_char(time,'MM')='05' then fz else 0 end ) 5月份fz合计,
sum(case when to_char(time,'MM')='06' then fz else 0 end ) 6月份fz合计,
sum(case when to_char(time,'MM')='07' then fz else 0 end ) 7月份fz合计,
sum(case when to_char(time,'MM')='08' then fz else 0 end ) 8月份fz合计,
sum(case when to_char(time,'MM')='09' then fz else 0 end ) 9月份fz合计,
sum(case when to_char(time,'MM')='10' then fz else 0 end ) 10月份fz合计,
sum(case when to_char(time,'MM')='11' then fz else 0 end ) 11月份fz合计,
sum(case when to_char(time,'MM')='12' then fz else 0 end ) 12月份fz合计 from bmfz
group by bm
本文名称：oracle怎么汇总月份 oracle按月份统计
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