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Explain forms based and graphical interface?
Forms based and graphical interface: graphical user interface (GUI) is a kind of user interface which permits people to interact along with electronic devices such as computers, hand-held devices (MP3 Players, Portable Media Players, and Gaming devices), household appliances and office equipment. A GUI offers graphical icons, and visual indicators as opposed to text-based interfaces, typed command labels or text navigation to completely represent the information and actions available to a user. The actions are commonly performed through direct manipulation of the graphical elements.
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Explain TPS concurreny executions stating their advantages in online business advancement
Consider the 1ollowin8 relation: CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., crui
Consider the following relational scheme: R (a,b,c,d,e,f) and its corresponding set of FDs {d→ a, be → c, ac → e, b → f, f → d, a → c}. a. Is the following decomposition i) non
Illustrate the Deployment Diagram A deployment diagram shows all nodes on network, their processor execution and interconnections. In a dynamic model, this is used to represen
Define the phases of two phase locking protocol Growing phase: a transaction may get locks but not release any lock. Shrinking phase: a transaction might be release locks bu
Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess
In a relational model how relations are termed? In a relational model, relations are termed as tables. (The term ‘relation’ is the technical name of the ‘table’ in RDBMS)
how draw er diagram
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