gh-89018: Improve documentation of sqlite3 exceptions

Doc/library/sqlite3.rst

@@ -829,35 +829,55 @@ Exceptions
 
 .. exception:: Warning
 
-   A subclass of :exc:`Exception`.
+   Exception raised for important warnings like data truncations while
+   inserting, etc.  It is a subclass of :exc:`Exception`.
 
 .. exception:: Error
 
-   The base class of the other exceptions in this module.  It is a subclass
-   of :exc:`Exception`.
+   The base class of the other error exceptions in this module.  Use this to
+   catch all errors with one single :keyword:`except` statement.  :exc:`Error`
+   is a subclass of :exc:`Exception`.
+
+.. exception:: InterfaceError
+
+   Exception raised for errors that are related to the database interface
+   rather than the database itself.  It is a subclass of :exc:`Error`.
 
 .. exception:: DatabaseError
 
-   Exception raised for errors that are related to the database.
+   Exception raised for errors that are related to the database.  It is a
+   subclass of :exc:`Error`.
+
+.. exception:: DataError
+
+   Exception raised for errors that are due to problems with the processed data
+   like division by zero, numeric value out of range, etc.  It is a subclass of
+   :exc:`DatabaseError`.
+
+.. exception:: OperationalError
+
+   Exception raised for errors that are related to the database's operation
+   and not necessarily under the control of the programmer, e.g. an unexpected
+   disconnect occurs, the data source name is not found, a transaction could
+   not be processed, etc.  It is a subclass of :exc:`DatabaseError`.
 
 .. exception:: IntegrityError
 
    Exception raised when the relational integrity of the database is affected,
    e.g. a foreign key check fails.  It is a subclass of :exc:`DatabaseError`.
 
+.. exception:: InternalError
+
+   Exception raised when the database encounters an internal error, e.g. the
+   cursor is not valid anymore, the transaction is out of sync, etc.  It is a
+   subclass of :exc:`DatabaseError`.
+
 .. exception:: ProgrammingError
 
    Exception raised for programming errors, e.g. table not found or already
    exists, syntax error in the SQL statement, wrong number of parameters
    specified, etc.  It is a subclass of :exc:`DatabaseError`.
 
-.. exception:: OperationalError
-
-   Exception raised for errors that are related to the database's operation
-   and not necessarily under the control of the programmer, e.g. an unexpected
-   disconnect occurs, the data source name is not found, a transaction could
-   not be processed, etc.  It is a subclass of :exc:`DatabaseError`.
-
 .. exception:: NotSupportedError
 
    Exception raised in case a method or database API was used which is not