SQL Server's OpenJson function will let you dismantle JSON structures into relational tables, including tables with foreign/primary key relationships.

SQL Server 2016 and Azure SQL Database both give you tables that automatically keep track of the history of your data. Here's how to retrieve that historical data. In an earlier column, I showed how ...

In SQL 7 and other high-end relational databases, each table is required to have a Unique Row Identifier or Primary Key in order to interact with other tables. Access does not require this and will ...

How to create a calculated column with values from related tables So far, everything needed has been in the same table, but you can add a calculated column that depends on values in another table.