How to merge polygons into a single item where an attribute is same?

Question

I have a shapefile of an area. It consists of a list of fields in which sub-locality is also a field. Under the sub-locality field all the areas are common, say for example: perungudi, perungudi, perungudi.
When I export this shapefile in Post Gis in the sub-locality field each attribute is represented as a separate shapefile. So I want all the attributes in the sublocality field to have common boundary. How can I do this?

mixedbredie · Accepted Answer

In QGIS you could use the VECTOR > GEOPROCESSING > DISSOLVE tool and dissolve on the "sublocality" field. You will have a multipart polygon and one record for each value in the "sublocality" field.

In ArcGIS you can use ArcToolbox > Data Management Tools > Generalisation > Dissolve and dissolve on the same field.

How to merge polygons into a single item where an attribute is same?

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