NAME

       tinysparql-query - Query to SPARQL endpoints.

SYNOPSIS

       tinysparql query [(-d |--database) <file> | (-b | --dbus-service) <busname> | (-r | --remote-service) <url>]
           (-f | --file) <file>] [(-u | --update)] [-a <parameter>:<value>]... [SPARQL]

DESCRIPTION

       This command allows running queries or updates on a SPARQL endpoint.

       When the caller runs a query, the query is in the SPARQL language. This can be done two ways. Either by
       providing a file with the query or by providing a string with the sparql query.

       The file argument can be either a local path or a URI. It also does not have to be an absolute path.

OPTIONS

       -b, --dbus-service=<service_name>
           Connects to a SPARQL endpoint at a D-Bus name.

       -d, --database-path=<database_path>
           Connects to a database by location in the filesystem.

       -r, --remote-service=<url>
           Connects to a HTTP SPARQL endpoint.

       -f, --file=<file>
           Use a file with SPARQL content to query or update.

       -u, --update
           This has to be used with --query. This tells "tinysparql query" to use the SPARQL update extensions
           so it knows it isn’t a regular data lookup request. So if your query is intended to change data in
           the database, this option is needed.

       -a, --arg=<parameter>:<value>
           Provides an argument for a parameter declared in the SPARQL query string. This may be used with
           --file, --query or --update. Multiple arguments may be provided for multiple parameters. Argument
           values are provided as a colon separated string containing 3 values: name, type and value. The name
           is the same as used in the query string, the value is the desired value, and the type is a
           single-character string defining the type:

           •   i: The value will describe an integer

           •   d: The value will describe a floating point number

           •   b: The value will describe a boolean

           •   s: The value will describe a plain string

EXAMPLES

       Querying a D-Bus endpoint

               $ tinysparql query --dbus-service org.example.Endpoint "SELECT ('Hello World' AS ?str) {}"

       Updating a database directly from a query in a file

               $ tinysparql query --database /tmp/db/ --update --file ./update.rq

       Using --arg to provide a arguments to query parameters

               $ tinysparql query -b org.example.Endpoint \
                   -a name:s:"John" -a age:i:42 -a available:b:true \
                   "SELECT (~name AS ?name) (~age AS ?age) (~available AS ?avail) { }"

SEE ALSO

       tinysparql-endpoint(1).

       https://gnome.pages.gitlab.gnome.org/tinysparql/tutorial.html.

  3.8.2                                            03/22/2025                                TINYSPARQL-QUERY(1)