FAQ

Table of Contents The Protege Plugins complains: No suitable driver found for .. (driver) What is the mapping syntax? How can I start using -ontop-? How Do I use ontop together with Protege? What does -ontop- support regarding SQL and SPARQL? What is the difference between Quest and -ontop-? How fast is -ontop- compared to the rest?

The Protege Plugins complains: No suitable driver found for .. (driver)

You need to download and install the right driver in Protege. See [Setting](https://github.com/ontop/ontop/wiki/ObdalibPluginInstallation#wiki-Setting_up_the_JDBC_Drivers_in_Protege) and [JDBC](https://github.com/ontop/ontop/wiki/ObdalibPluginJDBC)

What is the mapping syntax?

To learn the mapping language [page](https://github.com/ontop/ontop/wiki/ObdalibQuestMappinglanguage). To see how to produce [efficient](https://github.com/ontop/ontop/wiki/MappingDesignTips) (under construction.)

How can I start using -ontop-?

We recommend to Start following an easy example: [this](https://github.com/ontop/ontop/wiki/SimpleHelloWorldTutorial)

How Do I use ontop together with Protege?

See this [page](https://github.com/ontop/ontop/wiki/ObdalibOntoproPlugin).

What does -ontop- support regarding SQL and SPARQL?

See the known issues and limitations [here](https://github.com/ontop/ontop/wiki/ObdalibIssues)

What is the difference between Quest and -ontop-?

Quest is the reasoner behind -ontop-. -ontop- is the whole framework. For more information check [more](https://github.com/ontop/ontop/wiki/ObdalibQuest)

How fast is -ontop- compared to the rest?

Very fast! See our [Benchmarks](https://github.com/ontop/ontop/wiki/ObdalibQuestBenchmarks).