As it was said in subsection “Data files of SHP format” the number of SHP files created when performing export of a map or its component is equal to the total number of feature types being exported. For every SHP file being created DBF file with the same name will be also created which as a rule contains data from the table linked with feature type exported to this SHP file. The number of records of DBF file is always equal to the number of features exported as shapes in SHP file and the record number corresponds to a sequence number of shape description. More precise rules of correspondence between features and records can be formulated in the following way:
If SHP file has a linked table record for the feature being exported, fields of this record are exported to DBF file.
If there is no linked record for this feature, an empty record is written into DBF file.
If for some feature type exported to SHP file no linked table was specified in export settings, DBF file is still created, however, its records contain internal numbers (ISN) of features being exported. These numbers are usually inaccessible for the user working with ObjectLand, but they can be used by applications having access to internal structures of ObjectLand data.
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