This is SDB - a SPARQL query engine that compiles queries to 
relational algebra expressions then to SQL (various databases).

+ Includes, but is not limited to, the Jena2 database layout.
+ Includes other, optimized schemas.
+ Is a base for further investigation into optimized database schemas

**** Not stable ****

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==== Scripts

/bin/ scripts to run the command line tools
/bin2/ scripts that call the scripts 
      (put these in your user bin directory - they are short, stable
      indirections you might wish to edit).

Note: uses Jena ssemblers to build descriptions of databases.

==== Environment variables

-- Used by the main codebase and scripts:
 User/password for the database: $SDB_USER and $SDB_PASSWORD