Merging tables from two different databases (Python) -


i have 2 databases database1.db , database2.db. databases contain tables matching names , matching columns (and primary key 'date' column in both). difference between 2 entries in database1 2013 , entries in database2 2014. merge these 2 databases 2013 , 2014 data ends in 1 table in third database (let's call database3.db).

to clear, here databases i'm working contain , want third resulting database contain:

database1.db:

table name: germany_berlin

date            morning    day     evening    night 01.01.2013      0.5        0.2      0.2       0.1 02.01.2013      0.4        0.3      0.1       0.2 ...

database2.db:

table name: germany_berlin

date            morning    day     evening    night 01.01.2014      0.6        0.2      0.1       0.1 02.01.2014      0.5        0.2      0.3       0.0 ...

i have create resulting database3 following data:

database2.db:

table name: germany_berlin

date            morning    day     evening    night 01.01.2013      0.5        0.2      0.2       0.1 02.01.2013      0.4        0.3      0.1       0.2 01.01.2014      0.6        0.2      0.1       0.1 02.01.2014      0.5        0.2      0.3       0.0 ...

i haven't been able find directly helpful on online yet (perhaps joins used somehow? bhttp://www.tutorialspoint.com/sqlite/sqlite_using_joins.htm) suggestions appreciated!

ps. sqlite has been used create existing databases , database-related python library i'm familiar with

you can easly export .db csv (how export sqlite csv in python without being formatted list?) , import again .db (importing csv file sqlite3 database table using python) step 1 append result same cvs file.


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