Connecting NoSQL and Oracle Databases

NoSQL databases are very good in storing and retrieving large amounts of data. Analysis, on the other hand, is hardly possible. And you probably need that to actually make money out of Facebook, LinkedIn etc.
Therefore you need to transfer the data to a "regular" database, like Oracle.
There are two options to do this kind of stuff. The first one is with a MySQL Data Hub, that handles both the NoSQL and Oracle tables as external. Another option is to transfer the data to Oracle directly. Quest offers some (free) products in this area, like TOAD for Cloud Databases. Very interesting and definitely need to try this out. Thinking about APEX talking to a NoSQL database now...

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Comments

Simon Hunt said…

Roel, did you get anywhere with hooking up NOSQL with Apex? Si

11:01 pm

Roel said…

Alas, I didn't have the chance yet to play with this stuff.
When it is possible to connect from an Oracle Database to a NoSQL DB and see the NoSQL "tables" as external tables, views or whatever ... then it should be easy. I know there will be a couple of sessions during Kscope 2013 on this subject... (So another good reason to attend!)

9:32 am

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Stop using validations for checking constraints !

If you run your APEX application - like a Form based on the EMP table - and test if you can change the value of Department to something else then the standard values of 10, 20, 30 or 40, you'll get a nice error message like this: But it isn't really nice, is it? So what do a lot of developers do? They create a validation (just) in order to show a nicer, better worded, error message like "This is not a valid department". And what you then just did is writing code twice : Once in the database as a (foreign key) check constraint and once as a sql statement in your validation. And we all know : writing code twice is usually not a good idea - and executing the same query twice is not enhancing your performance! So how can we transform that ugly error message into something nice? By combining two APEX features: the Error Handling Function and the Text Messages! Start with copying the example of an Error Handling Function from the APEX documentation. Create this function ...

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