My approach to splitting up a date into its constituent parts is a regular expression:

if( $Date !~ /^(20\d\d)([01]\d)([0123]\d)$/ ) {
    die "Invalid date '$Date';
}
$Date = "$1-$2-$3 00:00:00.000";

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In reply to Re^3: Error passing string date from Perl to MSSQL by Corion
in thread Error passing string date from Perl to MSSQL by JobyJ

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