Galax is installed in the following two directories:

o:\cse\courses\cse444\06wi\Galax-0.5.0-MinGW\bin  --- the Windows version
O:\cse\courses\cse444\06wi\Galax-0.5.0-Linux\bin  --- the Linux version

Technically, that's all you need to know to do the homework problems on
XQuery. For a more gentle introduction on how to use Galax, read on.  
This small tutorial is for Windows only.  For Linux, go back in the browser
and click on the other link

1. Type:

   o:
   cd \cse\courses\cse444\06wi

2. Type 'dir'.  You should get something like that:


02/02/2006  08:05 PM    <DIR>          .
01/04/2006  11:15 AM    <DIR>          ..
02/02/2006  08:04 PM    <DIR>          Galax-0.5.0-Linux
02/02/2006  08:04 PM    <DIR>          Galax-0.5.0-MinGW
02/01/2006  11:13 AM        23,465,935 Galax-0.5.0-Linux.tar.gz
02/01/2006  11:13 AM        17,540,508 Galax-0.5.0-MinGW.zip
02/01/2006  11:13 AM         1,784,705 mondial-3.0.xml
02/01/2006  11:13 AM               124 q1.xq
02/01/2006  11:13 AM               183 q2.xq
12/14/2005  03:45 PM             4,416 mondial-3.0.dtd
               6 File(s)     42,795,871 bytes
               4 Dir(s)               0 bytes free

mondial-3.0.xml is a copy of the XML document you will use for the homework.

3. Look at the files q1.xq and q2.xq. For q1.xq you should see:

<result>
{ for $x in document("mondial-3.0.xml")/mondial/country//city/name/text()
  return 
   <c> { $x } </c>
}
</result>

For q2.xq you should see:

<answer>
 { for $x in document("mondial-3.0.xml")/mondial/country[@name="Peru"]/province[count(city)>1]/@name
  return
     <big-province> { fn:string($x) } </big-province>
 }
</answer>
!!! Note: Using "fn:string" is because $x is an attribute. This is one way to return the value of an attribute.

4. Type:

   Galax-0.5.0-MinGW\bin\galax-run.exe  q1.xq

   In a few seconds galax will print the result for you.  In this case
   it's the list of all city names in the database.  Notice that
   cities occur either under country, or under province.  In order to
   get both we used country//city.

5. Now try 

   Galax-0.5.0-MinGW\bin\galax-run.exe  q2.xq

   You are getting the names of all provinces in Peru with at least
   two cities.

6. Finally, try:

   Galax-0.5.0-MinGW\bin\galax-run.exe  q2.xq  >  C:\myfile.xml

This creates myfile.xml in C: directory with your result.