Key-value, document-oriented, column family, graph, relational… Today we seem to have as many kinds of databases ... query methodology instead of SQL. One commonly used graph query language ...

Second, there’s composable graph querying, where you glue together queries and one query ... good as SQL’s first implementation – and we need to find a way to make that happen. Many graph ...

SQL is neither the fastest nor the most elegant ... you were navigating to records through sets, which express one-to-many relationships. Older hierarchical databases only allow a record to ...