What am I doing wrong here? A float is a float right? Why does it matter how I use it?

The difference seems to be at one point Perl converts the decimal representation to float, and in the other occasion it's the database. If their algorithms differ, and result in just one bit being set differently, it would explain what you observe.

The correct solution is not to compare floating point numbers for equality, but do a range comparison like WHERE ABS(latitude - ?) < 0.000001 AND ...

If you really want to look for exact floating point values, consider storing them as strings in the database, not as actual numbers (but that might be a bad idea, depending on what else you want to do with them).

Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re: Difference between inline SQL and bound data by moritz
in thread Difference between inline SQL and bound data by MattLG

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