Oracle Database 11.2 Express Edition Beta

Seit ein paar Tage ist eine Beta Version für die Oracle Database 11.2 Express Edition verfügbar. Die Beta basiert auf dem Release Stand 11.2.0.2.0. Eine erste Installation unter Oracle Enterprise Linux 6 verlief relativ problemlos.

Wichtig ist das der Hostname des Systems auflösbar ist:

[root@centos6 log]# ping `hostname`
PING centos6 (192.168.56.101) 56(84) bytes of data.
64 bytes from centos6 (192.168.56.101): icmp_seq=1 ttl=64 time=0.081 ms
64 bytes from centos6 (192.168.56.101): icmp_seq=2 ttl=64 time=0.078 ms

Die Installation erfolgt dann wie von der 10g Version gewohnt:

[root@centos6 mnt]# rpm -i oracle-xe-11.2.0-0.5.x86_64.rpm
Executing post-install steps...
You must run '/etc/init.d/oracle-xe configure' as the root user to configure the database.

[root@centos6 log]# /etc/init.d/oracle-xe configure

Oracle Database 11g Express Edition Configuration
-------------------------------------------------
This will configure on-boot properties of Oracle Database 11g Express
Edition.  The following questions will determine whether the database should
be starting upon system boot, the ports it will use, and the passwords that
will be used for database accounts.  Press  to accept the defaults.
Ctrl-C will abort.

Specify the HTTP port that will be used for Oracle Application Express [8080]:

Specify a port that will be used for the database listener [1521]:

Specify a password to be used for database accounts.  Note that the same
password will be used for SYS and SYSTEM.  Oracle recommends the use of
different passwords for each database account.  This can be done after
initial configuration:
Confirm the password:

Do you want Oracle Database 11g Express Edition to be started on boot (y/n) [y]:

Starting Oracle Net Listener...Done
Configuring database...Done
Starting Oracle Database 11g Express Edition instance...Done
Installation completed successfully.

Auf meinem System gab es beim ersten Versuch Schwierigkeiten mit folgenden Einträgen in der Datei /etc/sysctl.conf:

# Disable netfilter on bridges.
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0

Ein zweiter Versuch das RPM-Paket zu installieren lief reibungslos durch. Auf dem Testsystem ist eine Firewall aktiv. Für den Remote-Zugriff auf die Datenbank und die APEX-Weboberfläche wurden folgende Firewall-Regeln in /etc/sysconfig/iptables ergänzt:

-A INPUT -m state --state NEW -m tcp -p tcp --dport 1521 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT

Zum Schluss muss der Remote-Zugriff auf die Web-Oberfläche in der XDB-Konfiguration ebenfalls eingetragen werden:

[root@centos6 ~]# su - oracle
-bash-4.1$ . /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh
-bash-4.1$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Beta on Tue Apr 5 18:07:08 2011
Copyright (c) 1982, 2010, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Beta
SQL> EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
PL/SQL procedure successfully completed.
SQL>

Links for Oracle Application Express

Mario a colleague of mine is starting to work on an project to extend an PL/SQL-based web application – so I thought it would be a good idea to give him a view links for Oracle Application Express – Que se divierta con ella.

Sometimes customers have the need for an ad hoc web development tool, especially when an PHP- or Java-based approach seams to be oversized. One solution provided from Oracle is called Application Express (APEX) – the former name was HTML-DB.

To get an first impression from APEX I recommend to view the APEX Quick Tour at the Oracle website.

The Official Home Page for Oracle Application Express can be found here.

To get you started with APEX and AJAX I have to links for you:

Well and for Charting you have a lot of options too: