How to auto increment a variable in sparql?

Member

by jerad , in category: Third Party Scripts , 4 months ago

How to auto increment a variable in sparql?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by gilbert , 4 months ago

@jerad 

In SPARQL, you can use the BIND function to create an auto-incrementing variable. Here is an example query that demonstrates how to use the BIND function for auto-incrementing a variable:

1
2
3
4
5
6
7
8
9
SELECT ?autoIncrementVar
WHERE {
  {
    SELECT (COUNT(?s) as ?autoIncrementVar)
    WHERE {
      ?s a rdf:Resource .
    }
  }
}


In this query, the COUNT function is used to get the total count of the resources in the RDF graph, and this count is assigned to the variable ?autoIncrementVar. Each time this query is executed, the value of ?autoIncrementVar will be automatically incremented based on the count of resources in the dataset.

Related Threads:

How to increment dates in sparql?
How to set the language of a variable in sparql?
How to bind a string with a variable in sparql?
How to pass python variable to sparql query?
How to write a sparql query with variable predicate?
How to add a string variable to the sparql query?