Hi,
There is quite the scenario that the Oracle Cost-Based Optimizer (CBO) uses when deciding when to use indexes to process your SQL. I go into this in great detail in my SQL Performance Tuning cours...
Hi,
I’ll start this series of blogs on New Features for Developers.
The first is quick but good!
A while back, December of 2014 to be exact, I blogged about APPROX_COUNT and how much faster it was. T...
In my previous post, I showed how easy to import data from CSV, JSON, Excel files using Pandas package. Another popular format to exchange data is XML. Unfortunately Pandas package does not have a fun...
