Other data types
Geographic data is a combination of coordinates and other kinds of data such as financial data and measurements. These kind of datasets are referred to as administrative data and usually form a major part of the data. They often provide the link to administrative solutions.
Other data types in GeolinQ
GeolinQ has standard data types such as Integer, Real and String to store non-geographical data such as amounts, measurements and descriptions. To store temporal aspects GeolinQ provides the data types Date and Date/Time. The data type Color is used to store styling colors and the color of raster cells.
A quantity imposes limits on the value of an attribute. A quantity can define for example the maximum string length or the minimum and maximum value of an attribute. Also the domain definitions can be used as a quantity.Quantities take care of data validation during import and unambiguous interpretation during further data use.
Data import and link external databases
GeolinQ can import administrative files in ASCII file format and XML format. If the datamodel is available as XSD, the administrative data with be stored in GeolinQ accordingly. If no datamodel is available the user is able to configure the datamodel and link the datamodel to the attributes of the input file during import.
GeolinQ offers functionality to access external Oracle and PostgreSQL databases containing administrative datasets via a datasource. The database schemes of the linked database are imported to make the vector datasets available in GeolinQ.
Retrieve and link data
Administrative datasets can easily be queried on metadata attributes. These metadata attributes can be defined by the user. The ISO 19115 metadata standard is also available and can be used ‘as is’ or as a guideline for a user-defined metadata schema. Administrative datasets can be linked to geographic datasets based on unique identifiers to plot their spatial distribution on a map.