# Classification – (Type 32 Record)

A structured entry that provides the code for the type of BLPU and the classification scheme from which the code is taken. This record holds the classification of a property and allows one to search upon the use of a feature.

### Data type attributes <a href="#data-type-attributes" id="data-type-attributes"></a>

The following page provides details about the attributes included with this data type, their types in the different output formats, and other important metadata about them.

### fid

A non-persistent integer which is autogenerated and is required within the OGC GPKG format.

* **Attribute Name**: Not provided (GML), Not provided (CSV), fid (GPKG)
* **Data Type:** Integer
* **Multiplicity**: \[1]

### Record identifier

Identifies this record as a Classification Record (type 32).

* **Attribute Name**: Not provided (GML), RECORD\_IDENTIFIER (CSV), Not provided (GPKG)
* **Data Type:** Integer
* **Size**: 2
* **Multiplicity**: \[1]

### Change type

Type of record change – please see [COU supply](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/supply-and-update#cou-supply) for more information.

* **Attribute Name**: Not provided (GML), CHANGE\_TYPE (CSV), change\_type (GPKG)
* **Code List Name:** [ChangeTypeCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-fundamentals/code-lists-and-enumerations/changetypecode)
* **Size**: 1
* **Multiplicity**: \[1]

### Pro order

The order in which the records were processed in to create the data supply.

* **Attribute Name**: Not provided (GML), PRO\_ORDER (CSV), Not provided (GPKG)
* **Data Type**: Integer
* **Size**: 16
* **Multiplicity**: \[1]

### UPRN

Unique Property Reference Number (UPRN) - foreign key used to reference the LPI to the corresponding BLPU.

* **Attribute Name**: Not provided (GML), UPRN (CSV), uprn (GPKG)
* **Data Type**: Integer
* **Size**: 12
* **Multiplicity**: \[1]

### Class key

Unique key for the classification record and primary key for this table.

* **Attribute Name**: classKey (GML), CLASS\_KEY (CSV), class\_key (GPKG)
* **Data Type**: CharacterString (GML), char (CSV), String (GPKG)
* **Size**: 14
* **Multiplicity**: \[1]

### Classification codes

Classification of the address record, depicting its primary use.

* **Attribute Name**: classificationCode (GML), CLASSIFICATION\_CODE (CSV), classification\_code (GPKG)
* **Data Type**: CharacterString (GML), char (CSV), String (GPKG)
* **Size**: 6
* **Multiplicity**: \[1]

{% hint style="info" %}
Please see [`addressbase-product-classification-scheme.zip`](https://docs.os.uk/os-downloads/products/addressbase-premium/addressbase-premium-downloads#addressbase-premium-classification-scheme) for a lookup table between the classification code used in product and the textual description.
{% endhint %}

### Class scheme

The name of the classification scheme used for this record.

* **Attribute Name**: classScheme (GML), CLASS\_SCHEME (CSV), class\_scheme (GPKG)
* **Data Type**: CharacterString (GML), char (CSV), String (GPKG)
* **Size**: 60
* **Multiplicity**: \[1]

### Scheme version

The name of the classification scheme used for this record.

* **Attribute Name**: schemeVersion (GML), SCHEME\_VERSION (CSV), scheme\_version (GPKG)
* **Data Type**: CharacterString (GML), float (CSV), double (GPKG)
* **Size**: (precision, scale) – 2(1)
* **Multiplicity**: \[1]

### Start date

Date on which this classification record was first loaded into the database.

* **Attribute Name**: Provided in [EntityWithLifeCycle](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/structured-data-types/entity-with-lifecycle) (GML), START\_DATE (CSV), start\_date (GPKG)
* **Data Type**: Date
* **Multiplicity**: \[1]

### End date

Date this classification record ceased to exist in the product database.

* **Attribute Name**: Provided in [EntityWithLifeCycle](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/structured-data-types/entity-with-lifecycle) (GML), END\_DATE (CSV), end\_date (GPKG)
* **Data Type**: Date
* **Multiplicity**: \[0..1]

### Last update date

The date on which any attribute on this record was last changed.

* **Attribute Name**: Provided in [EntityWithLifeCycle](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/structured-data-types/entity-with-lifecycle) (GML), LAST\_UPDATE\_DATE (CSV), last\_update\_date (GPKG)
* **Data Type**: Date
* **Multiplicity**: \[1]

### Entry date

The date on which the address record associated with this classification record was inserted into the Local Authority database.

* **Attribute Name**: Provided in [EntityWithLifeCycle](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/structured-data-types/entity-with-lifecycle) (GML), ENTRY\_DATE (CSV), entry\_date (GPKG)
* **Data Type**: Date
* **Multiplicity**: \[1]