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What is data dependency in DBMS?
Data dependency in DBMS refers to the relationship between different data elements within a database. There are three main types: functional dependency (one attribute determines another), partial dependency (part of a composite key determines other attributes), and transitive dependency (dependency between non-key attributes). Understanding data dependencies is crucial for database normalization and maintaining data integrity.
What is data dependency?
It is like a dependent variable it is just a variable alone.
What is Existence dependency in data base management?
If the existence of entity X depends on the existence of entity Y, then X is said to be existence dependent on Y.
Describe the purpose of normalizing data and also list out the dependencies involved in the process of normalization?
The purpose of normalizing data in DBMS is to reduce the data redundancy and increase the consistency of data. a) Partial dependency: non-prime attribute ( field) depends on other non-prime attributes b) Functional dependency c) Transitive dependency
What has the author Larry Burd written?
Larry Burd has written: 'A feasibility study of a program data base for North Dakota residents entering chemical dependency programs' -- subject(s): Alcoholism, Research, Alcoholics, Data processing
What are the problems with data dependency?
Data dependency in computer science can lead to performance issues as it may create bottlenecks and limit parallel processing capabilities. It can also increase the risk of errors and hinder the efficiency of multi-threaded or distributed systems. Additionally, data dependency can make it difficult to optimize code for speed and scalability.
What problems are caused by data dependency?
Data dependency can lead to several issues, including reduced flexibility in software design, as changes in one data component may necessitate extensive modifications in multiple interdependent modules. This can also result in increased maintenance costs and complexities, making it harder to track and resolve bugs. Additionally, data dependency can hinder scalability, as the system may struggle to accommodate changes in data structures or formats without significant rework.
What is the difference between data base and data base management system?
data base means a collection of data,which may be inter related. data base management system is a collection of programs for managing the data base.
Example of data program dependency in file system?
-File structure is defined in the program code.
What is the situation in which the Cpu needs the result of previous instruction to process another one?
data dependency
Who are the database users?
The data base are not people but people make the data base like Steve jobs is a data base maker
What is example of data base?
1- internet websites are made of a data base
