Создать месяц Название, Название дня, Номер недели и День между двумя датами

Question

У меня есть две переменные даты, и я хочу представить данные определенным образом. Итак, мой вопрос, как это, что показывает название месяца,

SELECT TO_CHAR (ADD_MONTHS (start_date, LEVEL - 1), 'fmMonth') months_namE 
     FROM (SELECT DATE '2012-01-01' start_date, DATE '2012-03-25' end_date 
       FROM DUAL) 
CONNECT BY LEVEL <= 
       MONTHS_BETWEEN (TRUNC (end_date, 'MM'), 
           TRUNC (start_date, 'MM')) 
       * +1; 

и выход, как это,

MONTHS_NAME 
----------- 
January 
February 

мой предполагаемый выход, как этот

MONTHS_NAME | WEEK | DAYS 
------------------------- 
January  1  1 
January  1  2 
January  1  3 
January  1  4 
January  1  5 
January  1  6 
January  1  7 
January  2  1 
January  3 
January  4 

я попытался многочисленные методы и не могут заставить его работать, пожалуйста, помогите мне ...

Answer 1

Это должно быть легко с использованием Row Generator способ. Отдых - это только маска .

• fmMonth - Название месяца
• fmDay - День имени
• IW - номер недели
• D - Номер дня

В SQL * Plus, моя демка между датами '2012-01-01' и '2012-02-20':

SQL> def date_start = '2012-01-01' 
SQL> def date_end = '2012-02-20' 
SQL> 
SQL> WITH DATA AS 
    2 (SELECT to_date('&date_start', 'YYYY-MM-DD') date1, 
    3  to_date('&date_end', 'YYYY-MM-DD') date2 
    4 FROM dual 
    5 ) 
    6 SELECT TO_CHAR(date1+LEVEL-1, 'fmMonth') month_name, 
    7   TO_CHAR(date1+LEVEL-1, 'fmDay') day_name, 
    8   TO_CHAR(date1+LEVEL-1, 'IW') the_week, 
    9   TO_CHAR(date1+level-1, 'D') the_day 
10 FROM data 
11 CONNECT BY LEVEL <= date2-date1+1 
12/
old 2: (SELECT to_date('&date_start', 'YYYY-MM-DD') date1, 
new 2: (SELECT to_date('2012-01-01', 'YYYY-MM-DD') date1, 
old 3:  to_date('&date_end', 'YYYY-MM-DD') date2 
new 3:  to_date('2012-02-20', 'YYYY-MM-DD') date2 

Результат

MONTH_NAME DAY_NAME THE_WEEK THE_DAY 
---------- --------- -------- ------- 
January Sunday 52  1 
January Monday 01  2 
January Tuesday 01  3 
January Wednesday 01  4 
January Thursday 01  5 
January Friday 01  6 
January Saturday 01  7 
January Sunday 01  1 
January Monday 02  2 
January Tuesday 02  3 
January Wednesday 02  4 
January Thursday 02  5 
January Friday 02  6 
January Saturday 02  7 
January Sunday 02  1 
January Monday 03  2 
January Tuesday 03  3 
January Wednesday 03  4 
January Thursday 03  5 
January Friday 03  6 
January Saturday 03  7 
January Sunday 03  1 
January Monday 04  2 
January Tuesday 04  3 
January Wednesday 04  4 
January Thursday 04  5 
January Friday 04  6 
January Saturday 04  7 
January Sunday 04  1 
January Monday 05  2 
January Tuesday 05  3 
February Wednesday 05  4 
February Thursday 05  5 
February Friday 05  6 
February Saturday 05  7 
February Sunday 05  1 
February Monday 06  2 
February Tuesday 06  3 
February Wednesday 06  4 
February Thursday 06  5 
February Friday 06  6 
February Saturday 06  7 
February Sunday 06  1 
February Monday 07  2 
February Tuesday 07  3 
February Wednesday 07  4 
February Thursday 07  5 
February Friday 07  6 
February Saturday 07  7 
February Sunday 07  1 
February Monday 08  2 

51 rows selected. 

SQL>