Procedural Query language
.. query specification involves giving a step by step process of obtaining the query result
e.g, relational algebra
.. usage calls for detailed knowledge of the operators involved
.. difficult for the use of non – experts
Declarative Query language
.. query specification involves giving the logical conditions the results is required to satisfy
.. easy for the use of non – experts
By Prof. P.Sreenivasa Kumar, IIT Chennai
view / download: DB-TupleRelationalcalculus (size 106 KB)
Comments are closed.