SQLxMatch: In-Database Spatial Cross-Match of Astronomical Catalogs

SQLxMatch is a SQL stored procedure that allows to perform 2-dimensional spatial cross-matches and cone searches across multiple astronomical catalogs stored in relational databases. We have integrated SQLxMatch with more than 50 astronomical catalogs, and made them publicly available as tables in remote SQL Server databases queryable through the CasJobs website, as part of the SciServer science platform ([1]). In CasJobs, users can directly execute form-free SQL queries for cross-matching, either synchronously or as asynchronous jobs. For general audiences, a simpler form-based cross-matching web interface will be soon available in the SkyServer astronomy portal.

Documentation and examples can be found in https://github.com/sciserver/SQLxMatch/