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Describe Graphical User Interface?
Graphical User Interfaces (GUIs) - A GUI typically displays a schema to the user in diagrammatic form. The user can then specify a query through manipulating the diagram. In several cases, GUIs utilizes both menus and forms. Most GUIs use a pointing device to pick certain elements of the displayed schema diagram.
Extend your CREATE TABLE statement from problem 3 with referential integrity constraints. Updates and deletes on related rows are restricted. 6. From examination of the sample data
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
Home based assignment Consider an ORDER table with the following attributes: • Order Number (ONo),Customer Number (CNo),Customer Name (CNa),Item Number (INo),Unit Price (UP), Quant
Whenever the LIMIT clause will be used? LIMIT is used for the following kinds of problems: 1) Answering questions about first or last and largest or smallest 2) Splitting
explain various steps uses in evaluation and maintenance of MIS.
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
Project Description: Oracle Certified Professional with 20 years of practice, Oracle version 6.0.34, 7.3, 8.0, 8i, 9i, 10G, 11G, 12C. Crossplatform migration, Informix, MSSql
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
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