MySQL根据一行相关的日期范围选择多行

Question

SQL structure

id, startdate, enddate  
1, 2012-01-01, 2012-10-01  

I need sql statment to receive duplicate rows from startdate to enddate range.

Example result would be:

1, 2012-01-01
1, 2012-02-01
1, 2012-03-01
...
1, 2012-10-01  

Does anyone have an idea how to solve this???

Answer 1

It should be something like this :

SELECT
  id, startdate, enddate
FROM
  myTable
WHERE
  (startdate, enddate) IN 
  (
    SELECT
      startdate, enddate
    FROM
       myTable
    GROUP BY
      startdate, enddate
    HAVING
      COUNT(*) > 1     
  )