Get a query to list the records that are on and in between the start and the end values of a particular column for the same Id

Question

There is a table with the columns :

USE \'table\';  
insert into person values   
(\'11\',\'xxx\',\'1976-05-10\',\'p1\'),  
(\'11\',\'xxx \',\'1976-06-11\',\'p1\         


        

Answer 1

This can be achived by:

SELECT Id, PId,
       MIN(Start_Date) AS sdt,
       MAX(Start_Date) as edt,
       IF(`place` <> @var_place_prev, (@var_rank:= @var_rank + 1), @var_rank) AS rank,
       (@var_place_prev := `place`) AS `place`
FROM person, (SELECT @var_rank := 0, @var_place_prev := "") dummy
GROUP BY rank, Place;

Example: SQLFiddle

If you want records to be ordered by ID then:

SELECT Id, PId,
       MIN(Start_Date) AS sdt,
       MAX(Start_Date) as edt,
       `place`
FROM(
     SELECT Id, PId,
            Start_Date
            IF(`place` <> @var_place_prev,(@var_rank:= @var_rank + 1),@var_rank) AS rank,
            (@var_place_prev := `place`) AS `place`
     FROM person, (SELECT @var_rank := 0, @var_place_prev := "") dummy
     ORDER BY ID ASC
    ) a
GROUP BY rank, Place;