Make your R data.table code more efficient and elegant with these special symbols and operators. Plus, learn about the new fcase() function R data.table code becomes more efficient — and elegant — ...

I recently published a tutorial describing the different available methods to store data locally in an Android app. However, due to article length constraints, I could not adequately cover creating ...

For example, the default option is to create a database initializer class that inherits from CreateDatabaseIfNotExists. With this option the first line of code that accesses the database triggers the ...

Designing an appropriate set of indexes can be one of the more troubling aspects of developing efficient relational database applications. Perhaps, the most important thing you can do to assure ...

What’s the difference between a table and a range of columns and rows on an Excel spreadsheet? How do I create and populate tables? And, once a table is created, how do we custom filter, format, and ...

Microsoft Office is more than the sum of its parts—you can link an Excel database table to an Access database, integrating your data and adding value. Here's how. You don’t have to import an Excel ...

How do I do that in data.table? Find code for dozens of data tasks in this searchable cheat sheet of R data.table and Tidyverse code. Speed. Concise syntax. Backwards compatibility. But especially ...

Struggling with disorganized data in Excel can be incredibly frustrating. You have all the information you need, but without connections between tables, it’s like trying to solve a puzzle with missing ...