Tuesday, 6 September 2016

What type of DML is Relational algebra

What type of DML is Relational Algebra?


Question:


1. Relational algebra is a _____________________ Data Manipulation Language (DML).

(a) Declarative 
(b) Non-Procedural
(c) Procedural
(d) None of the above



Answer:

(c) Procedural


Procedural DML is about specifying WHAT data are required along with HOW to get those data.


Non-Procedural DML is about specifying only WHAT data are required. It is also called as Declarative DML.







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