Download here: https://github.com/antihax/eve-jumps
Simple table allowing silly queries to find things within a distance from a system.
CREATE TABLE `jumps` ( `toSolarSystemID` int(10) unsigned NOT NULL DEFAULT '0', `fromSolarSystemID` int(10) unsigned NOT NULL DEFAULT '0', `jumps` tinyint(3) unsigned NOT NULL DEFAULT '0', `secureJumps` tinyint(3) unsigned NOT NULL DEFAULT '0', PRIMARY KEY (`toSolarSystemID`,`fromSolarSystemID`), KEY `fromSolarSystemID` (`fromSolarSystemID`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Can do such queries as this one which will find every highsec “island” system disconnected by low or null from the major trade hubs in 0.125s.
SELECT DISTINCT solarSystemName, regionName FROM evedata.jumps J INNER JOIN mapSolarSystems S ON J.toSolarSystemID = S.solarSystemID AND ROUND(S.security, 1) >= 0.5 INNER JOIN mapRegions R ON S.regionID = R.regionID WHERE fromSolarSystemID IN (30000001, 30002510, 30002659, 30002187, 30000142) AND secureJumps >= 254