The Tables contain the data in the database. They are organized in
columns and rows.
Here you will be shown the names of these columns, their
data type, the data type size, the unit, a short description, a default
value (if set), and the Unified Content Descriptor. The latter one is a
categorization of any parameter present in a column of a table or catalogue
in a predefined scheme (see the UCD page at CDS).
Also a description of the table is given, and a list of the required
constraints, ie. the primary key and key references.
Indexed variables are higlighted.