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The "Database Feature", which is not part of the default Odysseus, must be installed before. See also How to install new features
2017-11-22: Important: The database feature does not contain the cql parts anymore. If you want to use this, you will ne to install the "database.cql" feature after the "database" feature!
There are two possibilities how to use a database connection. For the one hand, you can create a persistent connection and reuse this connection in other queries. On the other hand, you can directly create a connection for each query. First, we show how to create and drop persistent connections and show how to use them in PQL and StreamSQL(CQL). Afterwards, we show how to directly setup a connection using PQL.
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