I started out in Database Design early in my application development career. I still remember being issued with an official IBM stencil for drawing Entity Relationship Diagrams (ERDs). Change ...

In this second delve into data cleanliness (read the first, How clean is your data?, here), we’ll test-drive the data profiling tool provided with Microsoft SQL Server. Other profiling tools have ...

Data modeling is the procedure of crafting a visual representation of an entire information system or portions of it in order to convey connections between data points and structures. The objective is ...

SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale. One of the most fundamental choices to make when developing an ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...