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Create role named role_table that allows a user to create tables. Using role_table allow users kripa and reena to create tables.
CREATE ROLE role_table; GRANT CREATE ANY TABLE TO role_table; GRANT role_table TO kripa, reena;
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Higher Normal Forms Is there more normal forms beyond BCNF? Yes, though, these normal forms are not based on the concept of functional dependence. More normalisation is needed if
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
Explain the concept of generalization and aggregation in E_R diagrams. Give one example for each one of them? Generalization: Consider extending the entity set account throug
This constraint shows that the key attribute value in each tuple must be unique, i.e., no two tuples have the similar value for the key attribute. This is because the value of the
1. Will you advise that your organization uses open source software and why? 2. Why is it important for business managers to have a basic understanding of the software development
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
what is the need of a log in dbms
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
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