$DBS = @("GPIDB1","GPIDB2","GPIDB3","GPIDB4","GPIDB5");   

#
# use ' to escape the Dollar sign!
# 
$PWD='PASSWORD_MIT_$_SIGN'

$COMMAND="database.sql"
	
foreach ($element in $DBS) {

   $ARGUMENTS="system/$PWD@$element @$COMMAND"
	
	echo "-- Info --  Start sqlplus with this $ARGUMENTS" ;

	start-Process -FilePath sqlplus -ArgumentList "$ARGUMENTS"	;
}