This seems to produce the desired output regardless of how the input is formatted.

#! perl -slw
use strict;

$/ = ';';
while( <DATA> ) {
    m[
        create\s+table\s+
        (?:"[^"]+"\.)* #"
        ( \S+ ) \s*
        \( \s*
          ( .+ )
        \s* \)
    ]smx or warn "*** No match '$_'" and next;

    print "$1.$_" for map{ m[(\S+)] and $1 } split ',\s*', $2;
    print "\n------\n";
}

__DATA__
create table "metrica".vodafone_capacity_cell_count_week
( nc_id integer, cell_id varchar(50) not null , week_of integer not nu
+ll , busy_hour "informix".utime, gsm_tch_cong_pc_range_1 integer,
    gsm_tch_cong_pc_range_2 integer, gsm_tch_cong_pc_range_3 integer, 
+gsm_sdcch_cong_pc_range_1 integer, gsm_sdcch_cong_pc_range_2 integer,
    gsm_sdcch_cong_pc_range_3 integer, gsm_sdcch_cong_pc_range_4
    integer, gsm_hr_tch_util_pc_range_1 integer,

    gsm_hr_tch_util_pc_range_2 integer, gsm_hr_tch_util_pc_range_3 int
+eger, gsm_hr_tch_util_pc_range_4 integer,
    gsm_hr_tch_util_pc_range_5 integer,


    gprs_cong_pc_range_1 integer, gprs_cong_pc_range_2 integer, gprs_c
+ong_pc_range_3 integer,
    config_tch integer, config_fpdch integer, config_trx integer,
    config_layer integer, cell_type varchar(25) default null );
[download]

Produces

vodafone_capacity_cell_count_week.nc_id
vodafone_capacity_cell_count_week.cell_id
vodafone_capacity_cell_count_week.week_of
vodafone_capacity_cell_count_week.busy_hour
vodafone_capacity_cell_count_week.gsm_tch_cong_pc_range_1
vodafone_capacity_cell_count_week.gsm_tch_cong_pc_range_2
vodafone_capacity_cell_count_week.gsm_tch_cong_pc_range_3
vodafone_capacity_cell_count_week.gsm_sdcch_cong_pc_range_1
vodafone_capacity_cell_count_week.gsm_sdcch_cong_pc_range_2
vodafone_capacity_cell_count_week.gsm_sdcch_cong_pc_range_3
vodafone_capacity_cell_count_week.gsm_sdcch_cong_pc_range_4
vodafone_capacity_cell_count_week.gsm_hr_tch_util_pc_range_1
vodafone_capacity_cell_count_week.gsm_hr_tch_util_pc_range_2
vodafone_capacity_cell_count_week.gsm_hr_tch_util_pc_range_3
vodafone_capacity_cell_count_week.gsm_hr_tch_util_pc_range_4
vodafone_capacity_cell_count_week.gsm_hr_tch_util_pc_range_5
vodafone_capacity_cell_count_week.gprs_cong_pc_range_1
vodafone_capacity_cell_count_week.gprs_cong_pc_range_2
vodafone_capacity_cell_count_week.gprs_cong_pc_range_3
vodafone_capacity_cell_count_week.config_tch
vodafone_capacity_cell_count_week.config_fpdch
vodafone_capacity_cell_count_week.config_trx
vodafone_capacity_cell_count_week.config_layer
vodafone_capacity_cell_count_week.cell_type

------

*** No match '
' at c:\test\junk3.pl line 6, <DATA> chunk 3.
[download]