cmd - Error with inner join mysql query -
please inner join error. done query in ms access - it's work, when in phpmyadmin or cmd - error
select zakaz.c_id, count(zakaz.c_id) [counter] country join ((resort join hotel on resort.res_id = hotel.res_id) join ([number] join zakaz on (number.[num_id] = zakaz.[num_id]) , (number.[num_id] = zakaz.[cost])) on hotel.h_id = number.[h_id]) on country.c_id = resort.c_id group zakaz.c_id;
in mysql, square brackets ([
]
) not valid characters identifier.
in access, used enclose identifier. in mysql, use backtick characters enclose identifier needs escaped. (this allows include spaces or other characters not allowed in identifier, , allows use reserved words identifiers. in query, none of identifiers need escaped in backticks.
also, in mysql, parens aren't necessary.
the query expressed in form easier human reader decipher. example:
select zakaz.c_id , count(zakaz.c_id) `counter` country join resort on resort.c_id = country.c_id join hotel on hotel.res_id = resort.res_id join number on number.h_id = hotel.h_id join zakaz on zakaz.num_id = number.num_id , zakaz.cost = number.num_id group zakaz.c_id
(it's bit of odd condition zakaz.cost
needs equal number.num_id
, zakaz.num_id
... appears condition specified in original query.)
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