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Overview
Astun have written the NLPG (National Land & Property Gazetteer) Importer to import NLPG csv files which are eventually converted to SQL records. The NLPG Importer allows for the importing of NLPG supplied files in DTF 7.3 format which may then be used in iShare as an address lookup. As iShare will only be performing an address lookup (with property easting and northing) we only need to process the STREET (11), STREET DESCRIPTOR (15), BLPU (21) and LPI (24) records.
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This will be done for the following record types:
REC_ID | Description |
|---|---|
11 | Street |
15 | Street Descriptor |
21 | BLPU |
24 | LPI |
Once the file processing has finished, the importer will then attempt to copy the files into their respective tables using the Postgres 'COPY INTO' command. Each imported row will be given its own sequence number column in the database table. There will be four tables created, one for each of the record identifiers above. For details of the database view please see National Land & Property Gazetteer (NLPG).
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The Unique Identifiers for each record type are as follows:-
Record Type | Unique Identifier Field(s) |
|---|---|
Street (11) | USRN |
Street Descriptor (15) | USRN+LANGUAGE |
BLPU (21) | UPRN |
LPI (24) | LPI_KEY |
A Data Share connection to each of the four views in the NLPG Postgres database will need to be created in iShare Studio.
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