| Class | Description |
|---|---|
| Column |
columns are (name, boolean-isQuoted) pairs.
|
| DB |
DB objects are database instances of DBSchema objects
|
| DBSchema |
A DBSchema object defines the schema of a database
|
| ErrorReport |
ErrorReport is a standard object to collect errors in evaluating
database constraints; it remembers a list of errors, and when its report
is printed, it throws Error if errors are reported
|
| KeyedTable |
currently unused Table implementation
|
| SubTableSchema |
a SubTableSchema object is an ordered pair (table, [list-of-subtables]),
which encodes one level of a table inheritance hierarchy.
|
| Table |
a Table is an instance of a TableSchema.
|
| TableSchema |
a TableSchema defines the name of a table and its columns
|
| Tuple |
a tuple is an instance of a TableSchema
|
| TupleList |
a TupleList is literally a linked-list of Tuples
|
| Unique |
Unique is a useful utility for evaluating the uniqueness of specific columns
of a stream of tuples.
|