On Monday, 21 October, 2019 08:31, Winfried <codecompl...@free.fr> wrote:
>Using the following tables, I need to find how employees from each city >come to work. >====== Employees table: >EMPLOYEE_ID | CITY_ID >Cities table: >CITY_ID | CITY_TXT >Mode table: >MODE_ID | MODE_TXT > >This is the type of output I need to get ultimately: >CITY | WALKING | CYCLING | PUBLIC TRANSIT | CAR | OTHER >City1 | 15% | 5% | 50% [ 25% | 5% No amount of queries or magical incantations will get you the results you are asking for because there is no way to get from MODE_TXT to CITY_TXT. That is, there is no way to compose the rest of the query as indicated by the ... to obtain the data required to solve the problem: select EMPLOYEE_ID, CITY_TXT, MODE_TXT from EMPLOYEES, CITIES, MODE where .... -- The fact that there's a Highway to Hell but only a Stairway to Heaven says a lot about anticipated traffic volume. _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
