Week days dates required

Question

Hi
I have a table with two columns..Start date and End date.
Start date End date
3/7/2011 6:00:00 AM 4/5/2011 6:00:00 AM (mm/dd/yyyy hh:mi:ss) format
I need to display Every monday date and Every sunday date between start and end dates.
Need help..!!
Regards
Arpitha

Answer 1

Having said that,
The solutions like direct connect by on difference will work only if the table has one row.
Here is the one if you are working on multiple rows with start dates and end dates
SQL> WITH T
  2       AS (SELECT TO_DATE ( '3/7/2011 6:00:00 AM', 'mm/dd/yyyy hh:mi:ss AM') start_date,
  3                  TO_DATE ( '4/5/2011 6:00:00 AM', 'mm/dd/yyyy hh:mi:ss AM') end_date FROM DUAL UNION ALL
  4           SELECT TO_DATE ( '4/7/2011 6:00:00 AM', 'mm/dd/yyyy hh:mi:ss AM') start_date,
  5                  TO_DATE ( '5/5/2011 6:00:00 AM', 'mm/dd/yyyy hh:mi:ss AM')
  6             FROM DUAL)
  7  SELECT dt,TO_CHAR ( dt, 'fmday') day_of_week
  8  FROM (SELECT TRUNC (start_date + (lvl - 1)) dt
  9    FROM T A,
10         (SELECT LEVEL lvl
11            FROM (SELECT MAX (end_date - start_date) AS diff FROM T)
12          CONNECT BY LEVEL <= diff + 1)
13   WHERE lvl <= (end_date - start_date) + 1)
14   WHERE TO_CHAR ( dt, 'fmday') IN ('monday', 'sunday');
DT        DAY_OF_WE
07-MAR-11 monday
10-APR-11 sunday
11-APR-11 monday
13-MAR-11 sunday
14-MAR-11 monday
17-APR-11 sunday
18-APR-11 monday
20-MAR-11 sunday
21-MAR-11 monday
24-APR-11 sunday
25-APR-11 monday
27-MAR-11 sunday
28-MAR-11 monday
01-MAY-11 sunday
02-MAY-11 monday
03-APR-11 sunday
04-APR-11 monday
17 rows selected.
SQL> G.