my $sql=<<"__SQL__";

Use of single-quote delimiters would avoid double-quotish interpolation entirely, with no need for  \ (backslash) escaping:
    my $sql=<<'__SQL__';
Please see here-docs in Quote and Quote-like Operators.

In reply to Re^2: Escaping and quoting ????? by AnomalousMonk
in thread Escaping and quoting ????? by pgduke65

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