Perl constants are really just (optimized) subs, and to do this directly you interpolate the result of calling the sub into the substitution string: 
$stmt =~ s/${\&TABLE_NAME()}.//g;

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Or use a $tmp var as tcf22 suggests.

(Update: don't forget to use quotemeta if needed: 

$stmt =~ s/\Q${\&TABLE_NAME()}.\E//g

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and I have a feeling you meant to backslash that .)

In reply to Re: Can I move a substitution string into a constant? by ysth
in thread Can I move a substitution string into a constant? by Anonymous Monk

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