> I want to get strong in SQL -- where/how do I start? 1. I suggest the PostgreSQL documentation itself (https://www.postgresql.org/docs/current/static/ https:

> I want to get strong in SQL -- where/how do I start? 1. I suggest the PostgreSQL documentation itself (https://www.postgresql.org/docs/current/static/ https://www.postgresql.org/docs/current/static/). It's well-written, but still wordier than need be, and if you try to read it from start to finish, you will probably die. However, the beginning chapters are overviews of SQL. Once you feel in the mud, you are probably in very specific, technical chapters. You can just skim these, jump to ones that interest you at the moment, etc. 2. There also a separate wiki (https://wiki.postgresql.org/wiki/Main_Page https://wiki.postgresql.org/wiki/Main_Page). I haven't gone there much, but it is a nice complement. It has practical summaries of things that the main documentation spins out of control (like setting up replication). It also has some examples of how to to do really advanced things in SQL. 3. A well-reviewed, short book. The first book I read was SQL Demystified. It's a short and easy intro to SQL in general. Find something like that. I have tried hard to find good books on SQL, but most are huge tomes that will crush your soul. 4. Practice. For the past decade at my job I have been forced to learn complex SQL for various business reports, across a variety of tables. And I still feel like an intermediate.