There may already be something called the OpenJDK on the CentOS server, but we want the Oracle-supplied JDK, so let's remove OpenJDK and install the JDK that we downloaded from Oracle: Actually, we need the Java JDK (Java Development Kit), as opposed to just the Java JRE (Java Runtime Environment). ORDS and Tomcat are both Java applications, so we need to install Java. We want the latest Apex version, and we want to use ORDS. That is nice, but it's an old Apex version and the EPG web server is not really suited for heavy usage. Now, let's log in to Oracle as SYS and check that everything looks OK:Īt this point you have an Oracle XE instance running, which also includes Apex 4.0 and the Embedded PL/SQL Gateway (EPG) running on port 8080. It is useful to set up the default environment of this user to include the path to the sqlplus executable, so we can start sqlplus from anywhere. This is actually quite straightforward, assuming you have followed the prerequisite steps in part one.Īs part of the installation, we created a user called oracle. ![]() Let's get right to it, starting with Oracle XE. ![]() This is part two in a series of blog posts about how to install Oracle 11g Express Edition (XE) with Oracle Application Express (Apex) on a CentOS Linux server, with Apex served by Oracle REST Data Services (ORDS) running on top of Tomcat and Apache.
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