Next: ATLAS - A General Search Service for Complex Data Collections . ... The archive data is stored in databases that are published online as SkyNodes. ... If we would like to load this data in a database, we'll have to create a representation of the survey data types suitable for our database system. ... The Data Release includes 3 different type of ``catalog" (Point Source Catalog, Extended Source Catalog, ScanInfo), which makes the database schema more complex (Fig. ... 2QZ (full catalog) . ...