EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Chapter 10, Problem 12E
Explanation of Solution
Opinions for handling the transaction load:
- Query performance must be improved in a centralized system for handling the transaction load.
- While performing Query processing, the following points must be noted,
-
- ○ Reduce the amount of memory and storage needed for query processing.
- ○ Maximize the throughput which means that the number of requests that are processed in a given amount of time should be increased.
- ○ Query Response Time has to be reduced.
- ○ Memory and Storage needed for processing has to be reduced.
- ○ Avoid Cross Product Operations as they result in huge intermediate tables that will require time for processing.
- ○ Perform restrictive select operations before the other operations.
- Query Optimization is performed by following the below given steps:
-
- ○ Generating Query Tree
- The root of this tree represents the whole query and leaf nodes are the tables of the query...
- ○ Generating Query Tree
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In 32-bit MSAM, You were given the following negative array. write a program that converts each array element to its positive representation. Then add all these array elements and assign them to the dl register. .data myarr sbyte -5, -6, -7, -4.code ; Write the rest of the program and paste the fully working code in the space below.
the dl register should have the value 22 after summing up all elements in the array.
Microprocessor 8085 Lab Experiment
Experiment No. 3 Logical Instructions
Write programs with effects
1. B=(2Dh XOR D/2) - (E AND 2Eh+1) when E=53, D=1Dh
2. HL= (BC+HL) XOR DE (use register pair when necessary), when BC=247,
HL 516, DE 12Ach
3. Reset bits 1,4,6 of A and set bits 3,5 when A=03BH
Write all as table (address line.hexacode,opcede,operant.comment with flags)
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