Category: XMLDB
March 25

Creating an alert log via XML/SQL

I don’t know what it is today, but reading Tanel’s post about “Oracle 11g: Reading alert log via SQL“, I just wanted to see if I could manage to do it backwards.

In principle you don’t have to use the statements below, because I noticed that the DBMS_SYSTEM.KSDWRT will do it for you automatically.

The content of my Oracle 11g log.xml file is as follows

 
 Starting ORACLE instance (normal)
 


 LICENSE_MAX_SESSION = 0
 


 LICENSE_SESSIONS_WARNING = 0

So based on Tanel’s blog, could I do the same, but now with XMLDB functions (based on database version 11.1.0.7.0)…

Here it goes.

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March 24

When is an XQuery Statement too Long?

I just saw Daniel Fink’s – OptimalDBA – blog post: When is a sql statement too long? When the following OTN XMLDB Forum post popped up in my mind… “xquery” versus “select xmlquery” and passing clauses. It tells the story about using bind variables and its performance issues, some alternative ways of dealing with things, charactersets and the ORA-19102 error (“XQuery string literal expected”), ORA-19114 (“Error during parsing the XQuery expression: string”) or ORA-01704 (“String literal too long”).

So when is a XQuery string too long…?

…

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February 8

Updated XML(DB) Content

For my and your convenience, I have updated my “XML Content” page so it is a little bit easier to find the XML posts.

I pinpointed in 2008 much more on performance, internals and how to setup an benchmarking environment and that is reflected in most of the topics regarding XML. In short, I hope you’ll enjoy reading them.

I hope it eventually will make a useful list.

😎

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