Exploring ​and ​Preparing ​your ​Data with BigQuery

This is another good learning resource on Coursera: https://www.coursera.org/learn/gcp-exploring-preparing-data-bigquery

Sign up to a free GCP account (you get a certain amount of credit free initially). There are plenty of public data sets already available which you can use for analysis

With regards to learning SQL, BigQuery generally uses 'Standard' (I beleive ANSI) SQL, so most things you've learnt in other DBMS's should carry over

If you want to go further I find the official BigQuery documentation pretty decent https://cloud.google.com/bigquery/docs/reference/standard-sql/

Or if you want to take online training I find Coursera pretty good and GCP administer some of the course content for certain courses: https://www.coursera.org/learn/gcp-exploring-preparing-data-bigquery

FYI: All the courses by Google Cloud are available on Coursera and you can audit them for free but you will not get any certificate.

1. https://www.coursera.org/learn/gcp-exploring-preparing-data-bigquery

2. https://www.coursera.org/learn/image-understanding-tensorflow-gcp

3. https://www.coursera.org/learn/gcp-production-ml-systems

4. https://www.coursera.org/learn/end-to-end-ml-tensorflow-gcp