UM-30 : Data storage and retrieval system on personal computer

Abstract

This report gives details of a Data Storage and Retrieval System for hydrological data developed on IBM compatible Personal Computer at NIH, using dBASE III - Plus for its implementation.

Using the DSR system, data can be stored in such a way that the storage of data is independent of the programmes which use them. A common and controlled approach has been adopted in adding new data and modifying/retrieving the existing data from the data base. The data have been structured so as to provide future application development simpler, faster and easier.

The major tasks performed by this package are

i) Validation of incoming raw data, their organization and thereby creation of the master file.

ii) Retrieval of data from the master data file.

iii) Maintenance and updation of the master data file.

These functions are performed with the help of simple commands developed specially for this purpose.