tinysparql-query - Man Page

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

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​.

-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

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) { }"

tinysparql-endpoint(1)​.

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