MYSQL Query don't return which have no relation on Join Query -


i wrote query data table "user" , corresponding "transaction" count table "service" . i've 100 user on table 1 . 2 user have relation service table. query return 2 results. used left outer query getting users have not relation service table.

here query:

select users.*,  count(service.recipient_number) total_transaction `users` left outer join service on users.id = service.office_id (users.del_status = 0 , service.del_status = 0 ,  users.type="agency")  group users.office_name

present output:

 username  total_transaction +++++++++++++++++++++++++++++++++++++    dhaka         2    ctg           1

desire output:

  username  total_transaction   +++++++++++++++++++++++++++++++++++++    dhaka         2    ctg           1    sylhet        0    comilla       0    mym           0 

select users.office_name,        count(service.recipient_number) total_transaction  `users` left outer join service on users.id = service.office_id                         , service.del_status = 0                         , year(curdate()) = year(service.creation_time)                          , month(curdate()) = month(service.creation_time) users.del_status = 0   , users.type = 'agency' group users.office_name

you need put where conditions regarding joined table, directly join.

why? because where clause filters complete result set. join conditions filter joined table result.


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