$ontext

  Example database access with MDB2GMS
  Multiple queries in one call

$offtext

$onecho > cmd.txt
I=Sample.mdb

Q1=select distinct(year) from data
O1=year.inc

Q2=select distinct(loc) from data
O2=loc.inc

Q3=select distinct(prod) from data
O3=prod.inc

Q4=select prod,loc,year,sales from data
O4=sales.inc

Q5=select prod,loc,year,profit from data
O5=profit.inc
$offecho

$call =mdb2gms @cmd.txt

set y years /
$include year.inc
/;
set loc locations /
$include loc.inc
/;
set prd products /
$include prod.inc
/;

parameter sales(prd,loc,y) /
$include sales.inc
/;
display sales;

parameter profit(prd,loc,y) /
$include profit.inc
/;
display profit;