Follow this step-by-step guide to install PostgreSQL, load data, connect to a database, and execute SQL queries including table joins PostgreSQL is an open-source, object-relational (also called ...

Postgres’s built-in tablefunc extension, for example, can do crosstabs, in SQL, with spreadsheet data from Steampipe’s Google Sheets plug-in.

AWS today announced a new database product that is clearly meant to go after Microsoft’s SQL Server and make it easier — and cheaper — for SQL Server users to migrate to the AWS cloud.