title: Can OracleXE's APEX access another Oracle Database (10g) on the same Server, or is it Restricted to those Users/Tablespaces in the XE Database?
body: <p>My work uses Oracle 10G and is planning on installing Apex. In the meantime, I have downloaded Oracle XE and have taught myself APEX on it; however, I can only access users/tablespaces that I have made in the XE database. What I would like to do is use the XE's Apex to access the users/tablespaces in the production databases of my work.</p>
  
  <p>My colleague says that this should be possible because my workstation is connected to the server, and that there should be a way to configure access from my XE's Apex to the 10g's databases, such as by setting up an appropriate DAD.</p>
  
  <p>I see nothing in the Apex user interface to allow this. I've read every word of the Apex documentation but nothing registered.</p>
  
  <p>XE uses the embedded PL/SQL gateway, as opposed to 10/11G which uses either an Apex Listener or an HTTP Server with the mod_plsql plugin.</p>
  
  <p>Thank you,</p>
  
  <p>Matthew Moisen</p>