DB++ &warn.experimental;

&reftitle.intro; db++, made by the German company Concept asa, is a relational database system with high performance and low memory and disk usage in mind. While providing SQL as an additional language interface, it is not really a SQL database in the first place but provides its own AQL query language which is much more influenced by the relational algebra than SQL is. Concept asa always had an interest in supporting open source languages, db++ has had Perl and Tcl call interfaces for years now and uses Tcl as its internal stored procedure language.

&reftitle.required; This extension relies on external client libraries so you have to have a db++ client installed on the system you want to use this extension on. Concept asa provides db++ Demo versions and documentation for Linux, some other Unix versions. There is also a Windows version of db++, but this extension doesn't support it (yet).

&reference.dbplus.configure;

&reftitle.runtime; &no.config;

&reftitle.resources;

Most db++ functions operate on or return dbplus_relation resources. A dbplus_relation is a handle to a stored relation or a relation generated as the result of a query.

&reference.dbplus.constants; &reference.dbplus.functions;