This C++ program allows you to send SQL queries as strings or entire .sql files containing several queries to any Sqlite3 or HDF5 databases. It performs its tasks without using any dot command, so it ...

Query string parsing is a bit of a mess right now. Parsing should be done only once, and results stored in an std::map in "struct request". This needs to work both for fcgi, as well as unit tests.

Abstract: Modern query engines rely heavily on hash tables for query processing. Overall query performance and memory footprint is often determined by how hash tables and the tuples within them are ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...

As one of the commonly used queries in modern databases, skyline query has received extensive attention from database research community. The uncertainty of the data in wireless sensor networks makes ...

We describe a technique and a tool called Qex for generating input tables and parameter values for a given parameterized SQL query. The evaluation semantics of an SQL query is translated into a ...