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Define external layer?
The external layer is the plane at which the user sees and interacts with the data, that is, the data format in the user interface. This data format is free of the database system used.
What are the different layers in R/3 system? There are three layer:- Presentation Layer. Application Layer. Database Layer.
What is "at exit-command:? The flow logic Keyword at EXIT-COMMAND is a special addition to the MODULE statement in the Flow Logic .AT EXIT-COMMAND lets you call a module befor
Explain Bottom up parsing. Bottom up parsing: This parse attempts to increase syntax tree for an input string by a sequence of reduction. If the input string can be decreas
Translate the following sentences into predicate logic, using Russell's theory of definite descriptions to represent the article the. a. The wizzard of Oz fell. b. Everyone a
If the product of two integers a and b is even after that prove that either a is even or b is even. Answer: It is illustrated that product of a and b is even so let a * b = 2n.
What is index register? In index mode the effective address of the operand is formed by adding a constant value to the contents of a register. The register used might be either
What is swapping? A process can be swapped out temporarily of memory to a backing store and after that brought back in memory for execution as continued.
Explain architecture of World Wide Web with the basic entities. The architecture of the World Wide Web, demonstrated below, is the one of clients, as like Netscape, Lynx or Int
DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und
What is Cursor? Cursor is a database object used by applications to manipulate data in a set on a row-by- row basis, instead of the typical SQL commands that operate on all the
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