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When I create places table in mashup.db, I created country_code as primary key and not be null until I realize how stupid this is. But how could I change it using sqlite statement? Or should I just create another table? Besides, what's the data type for column accuracy? Numeric or Integer? Or does it matter?

Thanks

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SQLite does not support the alter table drop constraint commands. You will need to create a new table without the primary key.

The column accuracy is an Integer.

https://developers.google.com/maps/documentation/javascript/3.exp/reference

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