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Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Write short note on Data models? Data models: A data model is an abstract model which elaborates how data is represented and accessed. The term data model has two commonly ac
Explain differance between Primary and secondary storage ? Primary and secondary storage Computer storage is classified within primary(main) memory and secondary(per
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
Enumerate or state the steps in creating a relevant database of a shop.
Normal 0 false false false EN-US X-NONE X-NONE
A buyer for a large department store chain must place orders with an athletic shoe manufacturer six months prior to the time the shoes will be sold in the department stores. In par
Express the properties of Strings? Strings can be case sensitive (or not) which can change the outcome of string operations. You can evaluate whole strings \ just part
Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
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