use strict;
my $sql='"ALTER TABLE "ARSAMS"."TCMD_HEADER" ADD CONSTRAINT FK_TCMD_HEA_OWNER_CONTAINE (CONTAINER_OWNER_CD) REFERENCES ARSAMS.CONTAINER_OWNER_CODE (CONTAINER_OWNER_CD)"';
my $fk_table_name="FK_TCMD_HEA_OWNER_CONTAINE";
$sql=~s/($fk_table_name)/$1 FOREIGN KEY/;
print $sql;