From DBD::Oracle

A slightly more subtle problem can occur with NUMBER types. The default NLS settings might format numbers with a fullstop (".") to separate thousands and a comma (",") as the decimal point. Perl will generate warnings and use incorrect values when numbers, returned and formatted as strings in this way by Oracle, are used in a numeric context. You could explicitly convert each numeric value using the TO_CHAR(...) function but that gets tedious very quickly. The best fix is to change the NLS settings. That can be done for an individual connection with the code below. 

$dbh->do("ALTER SESSION SET NLS_NUMERIC_CHARACTERS = '.,'");

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In reply to Re: No clear answer from Oracle by gam3
in thread No clear answer from Oracle by wazoox

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