Learning path
Start SQL in Spanish, practice with PostgreSQL and, if English works for you, close with Harvard’s course. Without selling a Coursera trial as if it were an audit.
Stage 1 of 3 · Start here
Khan Academy is free and in Spanish. There is no university diploma. It is enough to stop fearing SELECT.
A free Spanish introduction to querying databases with SQL. It does not ask for a prior bootcamp. There is no university certificate here: it is guided practice.
Khan Academy · Beginner · Spanish
View pageStage 2 of 3
freeCodeCamp pushes real exercises. The Spanish curriculum links here; some material may still be in English and ask for Docker or the browser environment.
A freeCodeCamp certification with real PostgreSQL exercises. The Spanish curriculum links here; some material may still be in English and ask for Docker or the browser environment.
freeCodeCamp · Intermediate · Spanish
View pageStage 3 of 3
CS50 SQL really models data. It is in English and the edX certificate is paid. It fits when you are no longer an absolute beginner, not as a first click if English is a barrier.
Harvard’s SQL course. It is in English and the edX certificate is paid. It fits when you are no longer an absolute beginner, not as a first click if English is a barrier.
Harvard · Beginner · English
View pageIf your goal is to analyze with code, the Python path is more useful than another SQL engine. Go is in the catalog as the official tour, not as a path.
Guide ·
If you have never programmed, do not start with a weekend tutorial. This is the order we use, with verified courses and the reason for each step.
Read guideGuide ·
Spreadsheets, SQL and Python are a real base. We do not promise a job. We point to verified courses and a possible order.
Read guideGuide ·
There is no universal first language. There is a better fit for web, data or C#. We map that to courses already in the catalog.
Read guide