Test-driven software must often drop, create and populate database tables with records before it runs a suite of unit tests. For this reason, the ability to have JPA frameworks -- such as EclipseLink ...

Get up to speed on MySQL basics with this step-by-step tutorial on how to create a database, add a table, and input data into the table. I talk a lot about server software and apps that require the ...

Excel possesses formidable database powers. Creating a relational database starts with a Master table that links it to subordinates, called (awkwardly) Slave, Child, or Detail tables. Before we dive ...

Excel used to be the poor schmuck’s database, with spreadsheets that just sort of sat there. You could create something more sophisticated with LOOKUP functions, but they were a huge hassle to set up.

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 ...

How to create a database on your Android device with PortoDB Your email has been sent If you're looking to keep track of data on your Android device, PortoDB might be ...

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 — ...

Have data sets scattered all over the place? Here's how to pull them into a single, robust catalog with the pointblank R package and a Quarto document. Do you have data sets scattered all over the ...

Now we will create the relationship between tables after naming the tables. On the Data tab, click Relationships in the Data Tools group. A Manage Relationships dialog box will open. In the Manage ...