Example data:

A triple pattern is a triple that can contain variables:

Variables can appear in any position:

A triple pattern does not need to contain any variables:

Data about articles:

A basic graph pattern is a list of triple patterns. Retrieve "title" and "created" of all articles:

Variables and literals can appear in any position. Find authors of articles created in 2018:

Different triple patterns in a basic graph pattern are not required to match different triples in a graph. The following contains solutions binding "art1" and "art2" to the same article:

To find authors that have published more than one article filter the solution by requiring "art1" and "art2" to be different:

Data about books:

Books published before 1820:

Data about people:

Find the name and optionally the e-mail address of all people:

When the SPARQLOptional wrapper is omitted the solution for "Bob" is missing:

Data about things, using different "name" properties:

Find the "name" of all things:

The same query using a property path:

Data about people:

Find people without e-mail address:

In this case a query based on NOT EXISTS gives the same result:

Family data:

Find descendents of Johann:

Find only grandchildren:

Data about food products:

Look up the price including delivery fee:

The same query using a "select expression":

Filter products by total price:

Look up the price for certain products:

Data about salaries:

Find the average salary:

The average salary by department:

Filter the groups by the total department salary:

Order by decreasing average salary: