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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 number of fields or same field names. Though, the two tables must have matching fields and the data for primary key field should be unique and non-empty
Explain the Reference Count The system relates a reference count along with each memory area to point out the number of its active users. This number is incremented while a us
What are the mapping techniques? a)Direct mapping b) Associative mapping c) Set associative mapping
What is roll area? A roll area having the program's runtime context. In addition to the runtime stack and other structures, all local variables and any data known to the prog
Qualifications of security professionals For the security professionals, it is essential that they have adequate freedom to check the security measures and enforce them and
What are the ways to create a new form? You can make a new form in any of the following three ways: Using AutoForm: You can make a form based on a single table or query qui
What are the advantages and disadvantages of packet switching over circuit switching? The comparison of packet switching and circuit switching demonstrating advantages and disa
Define pipelining Pipelining is an efficient way of organizing concurrent activity in a computer system. The processor implements the program by fetching and implementing instr
Problem 1 (a) List and describe the characteristics of mainframes, minicomputers and microcomputers. (b) Briefly describe what is meant by electronic commerce and what b
Q. Define Interrupts in assembly language? An interrupt causes interruption of an ongoing program. A number of the common interrupts are: printer, monitor, keyboard, an error c
Explain the stack in digital computers The stack in digital computers is fundamentally a memory unit with an address register which can count only (after first value is loaded
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