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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 rows in the set at one time.
In order to work with a cursor we require performing some steps in the following order:
Declare cursor
Open cursor
Fetch row from the cursor
Process fetched row
Close cursor
Deallocate cursor
Sun and Ni's Law The Sun and Ni's Law is a generalization of Amdahl's Law as well as Gustafson's Law. The fundamental idea underlying the Sun and Ni's Law is to find the soluti
For what an append query be used? It is simple to append records from one table to another using an append query. There is no requirement for the tables to have the similar num
Yes, you have to have some form of X server (unless you're running Windows, of course). It requires an X server for image processing, and for font manipulation. Though, if you wish
Q. Explain Structure of Control Unit? A control unit has a set of input values on the foundation of which it produces an output control signal which in turn performs micro-ope
Define Program Counter(PC) The Program Counter holds the address of the next instruction to be read from memory after the current instruction is implemented.
Define interrupt. An interrupt is any exceptional event that causes a CPUU to temporarily transfer control from its present program to another program , an interrupt handler th
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What is SISD? Single Instruction stream, Single Data stream (SISD) shows the organization of a single computer having a control unit, a processor unit, and a memory unit. Inst
A) Around how many entries are there in this file on your VM? B) Select and list names and corresponding port numbers for four well-liked services listed in this file?
Name two special purpose registers. Index register Stack pointer
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