DatabaseSchema   The number and names of the tables in the database, and the global properties such as the format of dates and times.

To obtain a DatabaseSchema object, access the Connection.databaseSchema property.

TableSchema   The number and names of columns in the table, and the Indexes collections for the table.

To obtain a TableSchema object, access the ULTable.schema property.

IndexSchema   Information about the column, or columns, in the index. As an index has no data directly associated with it, there is no separate Index object, only a IndexSchema object.

The IndexSchema objects are accessed using the TableSchema.getIndex method.

PublicationSchema   The numbers and names of tables and columns contained in a publication. Publications include the PublicationSchema object, but not the Publication object.

The PublicationSchema objects are accessible using the DatabaseSchema.getPublicationSchema method.

ResultSetSchema   The number and names of the columns in a result set.

The ResultSetSchema objects are accessible using the PreparedStatement.getResultSetSchema method or the ResultSet.schema property.