Description

Store data from Access database (file Transportation.mdb) into a GDX file.

This model is referenced in section "Strategies" from the MDB2GMS Documentation.

Keywords: MDB2GMS, data exchange, GAMS language features

Category : GAMS Data Utilities library

Main file : MDB2GDX2.gms   includes :  Transportation.mdb  MDB2GDX2.gms

$title Creates a GDX File using MDB2GMS at compile Time (MDB2GDX2,SEQ=043)

$onText
Store data from Access database (file Transportation.mdb) into a GDX file.

This model is referenced in section "Strategies" from the MDB2GMS Documentation.

Keywords: MDB2GMS, data exchange, GAMS language features
$offText

$if %system.filesys% == UNIX $abort.noError 'This model cannot run on a non-Windows platform';
$call msappavail -Access
$ifE errorlevel<>0 $abort.noError 'Microsoft Access is not available!';

$onEcho > howToRead.txt
I=Transportation.mdb
X=Transportation.gdx

Q1=SELECT name FROM suppliers
S1=i

Q2=SELECT name FROM demandcenters
S2=j

Q3=SELECT name, demand FROM demandcenters
P3=demand

Q4=SELECT name, supply FROM suppliers
P4=supply

Q5=SELECT supplier, demandcenter, distance FROM distances
P5=dist
$offEcho

$call mdb2gms.exe @howToRead.txt > %system.nullfile%
$ifE errorLevel<>0 $abort Error using MDB2GMS!