SQL Server 2016 and Azure SQL Database both give you tables that automatically keep track of changes to your data. ... Some things are taken care of for you: If you alter the schema of a temporal ...

DB2, Microsoft SQL Server, Oracle and PostgreSQL all support recursive queries using CTEs. Note that Oracle also offers an alternative syntax using the CONNECT BY construct, which we will not discuss ...

Perhaps, the most important thing you can do to assure optimal application performance when accessing data in a relational/SQL database is to create the correct indexes for your tables based on the ...

Queries in Peewee use a syntax that hearkens back to SQL itself; for example, Person.select(Person.name, Person.id).where(Person.age>20).Peewee also lets you return the results as rich Python ...