Screen 3.10 This screen is used to
Append/Edit/Delete records in Reprints database.
screen 3.11 This screen is used to generate a
query on data present in Reprints database.
Browse function provided in all databases allows
user to build his own query condition by selecting
the field,its value for comparison and connectors to
bulid complex conditions. Subsequent to browsing
thru the data meeting the conditions, user can
optionally take hard copy of the data. A print
options menu is provided for this purpose which
allows user the facility of direct printing, spooling
and printing or viewing spooled data.
5. APPLICATIONS
The basic aim of the sytem is to provide an inter-
face between the information requirements of users
and the availibility of data in any organisation. It
also serves as an inventory of our resources. The
option to print the queries has also been provid-
ed, so that they can be refered at any time, The
system thus provides for a speedy , accurate and
convenient retrieval of information.
The system also provides librarian an effective aid
in selective dissemination of information (SDI
services), one of the major objectives of today's
libraries. Subject bibliographies can also be made
using the system. The system also enables prepara-
tion of on-line catalogues. Various queries can be
satisfied quickly without much loss of time.
6. SUMMARY
A PC based information system to facilitate storage
and retrieval of remotely sensed and allied data
products and lierature has been developed. The
system has been in use for over a year and has been
found to be user friendly and highly convenient by
regular users of the system.
7. REFERENCES
lBarley, K., & Driscoll, J., Survey of database man-
agement systems for microcomputers . Byte Vol 7,
No.12 ,1981.
2.Hayes, R.M. , & Becker j., Handbook of data process-
ing for libraries , 2nd Ed. , California , Melvile
Publishing Co. , 1984
3, Lillesand,T.M. & Keifer,R.M., Remote sensing and
image interpretation, New York , John Wiley & Sons,
1979.
4, Midha,R.K, Natural Resources Data Management
System - A Spatial approach to micro level planning
, Lecture notes for the short term course on Geo-
graphic Information Systems for Resources Data
handling , Analysis & Management , Feb 19-23,1990 ,
CSRE ,IIT ‚Bombay ‚1990
356
5. Nagarajan,R. & Deval,D.P. , C.S.R.E. Data Archives
,C.S,R.E,Bombay , 1990
6, Satalkar ,V. & Kunte, P. Micro-based relational
database for a special library , Electronic library ,
Vol 6 ,No 1, 1988
7. Simpson,
A. Understanding dBase III plus , New
Delhi , BPB Publications , 1986.
Table 1. Structure of Various Databases Used by
NRDIS
Structure of Aerial Photo Database
Field Name Type Width
Task No Character 8
Run No Character 6
Date Date 8
Lattitude Character 20
Longitude Character 20
Type Character 5
Scale Character 8
Total Numeric 3
States Character 60
Districts Character 60
Towns Character 60
Rivers Character 60
Owner Character 10
Issued To Character 15
Structure of Image Database
Field Name Type Width
Satellite Character 10
Path Row Character 10
Sensor Character 10
Product Character 10
Date Date 8
Time Character 8
Bands Character 10
Scale Character 8
Sun Elev Numeric 3
Sun Azi Numeric 3
Lattitude Character 20
Longitude Character 20
States Character 60
Districts Character 60
Towns Character 60
Rivers Character 60
Owner Character 10
Issued To Character 15
Structure of Toposheet Database
Field Name Type Width
Sheet No Character 8
Lattitude Character 20
Longitude Character 20
Restricted Character 1
Scale Character 8
Year Numeric 4
States Character 60
Districts Character 60
Towns Character 60