sql - How to get data from three or more tables -


i need display distinct data between 3 tables. how requirement.

firsttable: 

9999999999                      8888888888            7777777777 6666666666 5555555555

secondtable:

7777777777 9999999999

thirdtable:

8888888888

i want output in format.

6666666666 5555555555

use left join

   select t1."col"      table1 t1 left join table2 t2         on t1."col" = t2."col" left join table3 t3         on t1."col" = t3."col"     t2."col" null        , t3."col" null

output:

|        col | -------------- | 6666666666 | | 5555555555 |

see sqlfiddle


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