Question

I have a feeling I’m asking a stupid question here. I’m having trouble retrieving float values from a database.

The field in the database (whether I set it to float or double, I’ve tried both)
Has the value

-3.218364

When reading the value using sqlite3_column_double it returns the value

194586

I’ve tried all sorts of combinations, storing it using float, double, NSNumber, CLLocationDegrees with no luck at all.

How stupid am I being here, I’ve used decimals in previous app with no problems. But I can’t figure out what I’ve done wrong here.

All help appreciated!

Answer 1

SQLite will store and retrieve the correct value as long as you bind the correct value and use the correct indexes.

e.g.

//prepare insert statement ...
sqlite3_bind_double(statement, 1, -3.218364); //Binding is 1 based

//.. retrieve
double dv = sqlite3_column_double(statement, 0); //Retrieving is 0 based

You should not be getting another value unless

1. You are inserting the wrong value
2. You are retrieving from the wrong index