Thanks for the response, but I think the problem is a little more subtle. The reason I think that the above script produces different results is that DBD::Oracle is ignoring Perl's internal utf8 flag that is associated with each Perl string.

For instance, in the case of $q1, Perl is using a single octet for the character 'ä'. In the second case Perl is using two octets for that character, and the 'utf8' flag is on. If DBD::Oracle was looking at the 'utf8' flag, it really should produce the same results in both cases. Since it is not, I can only conclude that it is ignoring the utf8 flag.

Consequently, I am not sure that any setting of NLS_LANG will fix the problem. For instance, if NLS_LANG is set to 'utf-8', then DBD::Oracle will interpret $q1 incorrectly. On the other hand, if NLS_LANG is set to 'iso-8859-1', DBD::Oracle will interpret $q2 incorrectly.

I could be wrong about this. Using Encode::encode all the time is okay with me -- I just want to make sure that it is necessary.

In reply to Re^2: DBD::Oracle uses Perl's internal representation of strings by pc88mxer
in thread DBD::Oracle uses Perl's internal representation of strings by pc88mxer

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