Learn the R programming language in this tutorial course (2 hr). This is a hands-on overview of the statistical programming language R, one of the most important tools in data science.
This video (4:25 min) will teach what SQL is, and why it is an important language to learn in the era of big data.
The video below (2:07 min) is the first in a series of python instructional videos (Giraffe Academy, 2017). The course is designed for new programmers and will introduce common programming topics using the python language.