mysql - join 2 tables to bring multiple column's using one single join -


i have table table1

pid_x   pid_y   count         b       5         c      10   b            20   c       e       3   d       g       7   e       f       10   e       b       20

and on (more 1 million rows)

also have master_table consists details

pid  rating_pid   price_pid       2              10  b      4              20  c      1              30  d      3.5            40  e      2.4            50  f      1.5            60  g      3.8            70

(and on, huge table master_table)

also have score_table.

pid  score_p_id        7                b      1                c      4                d      3.5              e      4             f      5             g      3

what looking is, final_table has columns

pid_x pid_y final_score price_pid_y rating_pid_y price_diff_pidy/x

explanation.

create final table has column's pid_x , pid_y , final_score pid_y (score +count) score table pid=pid_y , join price , rating of pid_y master_table's pid , price difference percentage of pid_y respect pid_x.

final_table should this

pid_x   pid_y   final_score    price_pid_y  rating_pid_y  price_diff_pid_y/x         b        6               20          4               200         c        14              30          1               300   b              27              10          2               50

the table very huge, want optimized solution it

what thinking join these 3 tables? there solution/insights it?

join score , master_table once, , intermediate_table
join intermediate table table1 way achieve this?


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