Programming Database Field Attributes 
The extensions in the implementation program for a database field attribute are located between the macro instructions GET_TABLE_PROPERTY and END_PROPERTY.
Buffering attribute accesses
So that only one access has to be programmed for all attributes that refer to a table, the table is buffered in an internal table. This is generated when an attribute is first accessed from the table in the FORM routine SELECT_TABLE_<TableName>.
If the system then accesses other attributes that refer to this table, it retrieves the information from the internal table and not from the database.
Note
The system generates the implementation of attributes, for which a database field is defined and entered as source, automatically from the information you specified for the individual components of the object type definition. Do not change this part of the implementation.