SQL> Select * From Alert_XML_Errors;

Once you are able to show the xml version of the alert log as data in database table Alert_XML, it would be nice to checkout the errors with accompanying timestamps from within view Alert_XML_Errors. Like this, with the help of 2 types and a pipelined function.

su - oracle
. oraenv [ orcl ]
[oracle@localhost ~]$ sqlplus harry/*****
SQL> desc alert_xml
Name                                      Null?    Type
----------------------------------------- -------- ----------------------------
TEXT                                               VARCHAR2(400 CHAR)


SQL> Select * From Alert_XML;

By mapping an external table to some text file, you can view the file contents as if it were
data in a database table. External tables are available since Oracle 9i Database, and from Oracle
11gR2 Database on, it is even possible to do some inline preprocessing on the file.

The following example of this feature picks up on standard output of shell script “get_alert_xml.sh”.
It isn’t referencing any file, but take notice of (more...)