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Lock Based Protocol A lock is nothing but a mechanism that tells the DBMS whether a particular data item is being used by any transaction for read/write purpose. As there are t
limitations and benefits in database tecknowlagy
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
Define Catalog and meta data ? A catalog is a compilation of records elaborating the contents of a particular collection or group of collections. Metadata (Meta data, or someti
Preliminary entities and attributes of human resourse management database management system
Winfield is a small city with a population of 22,000 with buses serves three routes in Winfield and neighboring areas. As the city’s IT director, you have been asked to set up an i
Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
Waterfall model is the linear model. The process is completed by step by step. We couldn't stop in between of the process. Prototype model: after get the model by low cost budget o
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
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