David Njoku

Author

All databases stand on a tripod of datatypes: strings, numbers and dates. And so I’d imagine that by Day 2 or so of dabbling with Oracle you’d be starting to get reasonably comfortable with the VARCHAR2, NUMBER and TIMESTAMP data types. And that’s a good thing, familiarity with those three data types will take you a long way into a… Continue Reading →

All Things Oracle Full Articles

All databases stand on a tripod of datatypes: strings, numbers and dates. And though they might dress them in fancy clothing – varchar2, clob, float, integer – strings are really just strings, and numbers are really just numbers. But dates — dates are interesting. In this article I’ll talk to you about dates, about time, and about how both are… Continue Reading →

All Things Oracle Full Articles

Here’s a simple trick you can play on your friends. Ask them to pick a number from 1 to 10, and tell them you’ll read their mind and magically extract from it the number they’ve chosen. Don’t give them too long to choose; then put on your best imitation of a magician and say… 7. I don’t know why, but… Continue Reading →

All Things Oracle Full Articles, Application Development, Database Development

In this fifth article in our series on JSON and the Oracle database we’ll be pulling the curtains back on the magic tricks that can convert your boring old relational data to JSON. OK, maybe that’s overselling it a little. Obviously there’s no magic involved; indeed some may say it’s anything but. But before we get to all of that,… Continue Reading →

All Things Oracle Full Articles

There’s a possibility you’ve parachuted into this series on JSON and Oracle at this point. If you are already familiar with what JSON is and how it is created, and are only interested in discovering how to wrestle JSON data from an Oracle database, then you’re welcome, grab a seat. However, if you see the words JSON and Oracle, and… Continue Reading →

All Things Oracle Full Articles, Database Development

Welcome to part three in this series of articles about Oracle and its uneasy romance with JSON. Uneasy? Well, that’s a bit of a spoiler; so far it’s been smooth sailing. Part 1 was a precis of JSON, while Part 2 delved into the reasons for Oracle’s involvement in the area. So far so good; but now we’ve got to… Continue Reading →

All Things Oracle Full Articles

In this short series of articles, we’ll be talking about JSON and its integration with the Oracle database.  The first part was an introduction to JSON itself, and was, admittedly, very light on Oracle.  But now it’s probably time to bring Oracle more into the story and talk about how the database has adapted to handle this new format. Or, actually,… Continue Reading →

All Things Oracle Full Articles

Hi, meet my friend JSON. Chances are you’ve heard of it, perhaps you have a vague idea of what it’s for – something to do with data-interchange – perhaps you even suspect that the J stands for Javascript… or is that Java? The rise in JSON’s popularity has been pretty meteoric, from its early days back in the year 2001… Continue Reading →

All Things Oracle Full Articles

There’s something slightly oxymoronic about the phrase XQuery Update Facility. Make your mind up, dude – are you querying or updating? You cannae do both! But as, with each passing year, XQuery got more powerful and more popular the lack of an ability to modify XML documents began to look more and more like a gaping hole. And so, in… Continue Reading →

All Things Oracle Full Articles

This is the fourth part of a series introducing Oracle developers to XQuery. In the first three parts we’ve talked about XPath, Oracle’s implementation of XQuery, and FLWOR. This article won’t be taking on anything so meaty; I just want to clear up some odds and ends that I think are important, but I wasn’t able to shoehorn into any… Continue Reading →

All Things Oracle Full Articles