Most developers are coming from a background with relational database-specific experience, and then trying out some new NoSQL databases like MongoDB. Here are some “gotchas” I ran into while using MongoDB with my MySQL hat still on:
Queries are case-sensitive
Fields and queries in MongoDB are case-sensitive:
1
2
3
var test1 = db.test.find({’tags’: ‘jquery’}).count();
var test2 = db.test.find({’tags’: ‘jQuery’}).count();
test1 == test2; [...]
I’ve spent the past few weeks here at work researching and playing with NoSQL databases (and especially MongoDB) for a new feature we’re developing that doesn’t easily fit into a relational model. And so far, I really like what I see. The profoundness of the shift away from the relational model and the implications that [...]
PHP provides two built-in functions to retrieve properties of a given class – get_object_vars and get_class_vars. Both these functions behave the same exact way, one taking an object as a variable and the other taking a string class name. The tricky thing about the two functions is that they behave differently depending on the call [...]
Packt Publishing announced the winners for their annual Open Source CMS Award in November, and since then I have been a bit disturbed that the 2009 winner was WordPress. My first reaction was this:
“… So a blogging platform won the content management system award? How sad is that?”
My knee-jerk “how sad is that?” reaction comes [...]
I was fortunate enough to be selected as the regional speaker for the Dallas CodeWorks 2009 stop by the Dallas PHP User Group through a community voting and selection process. My talk was entitled Object Oriented Apologetics, and was essentially about letting people know what good object-oriented code is, when to use it, how to [...]
When debugging, I often find that I have to comment and un-comment a block of code several times during the process of trying to find out what’s going on. That used to mean typing and deleting comment block characters repetitively, but not anymore. Here’s a simple solution to that problem: Comment or un-comment an entire [...]
All content copyright © 2010 Vance Lucas | Powered by WordPress | Entries (RSS) | Comments (RSS)
