mysql - counting of rows with group by - 


seat_num    service_key   source_id  destination_id 1              19229          0             60  1              19229          240           600  2              19229          0             240  3              19229          0             600

my table data above. want result below

count    service_key   source_id  destination_id  3              19229          0             60 2              19229          240           600  2              19229          0             240  3              19229          0             600

the logic behind count of seat nums should fall between range of source , destination. issue here 0 600 source , destination counting 4 should 3 because same seat num (1) used twice. please let me know how result required.

try :

select service_key,source_id,destination_id,count(seat_num)  tablename  seat_num between source_id , destination_id  group seat_num  having count(seat_num) > 0;

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