Create a table of at least 4 columns and fill it with data to simulate the insertion, update, and deletion anomalies. Explain how each of the anomalies would happen and the problem that would arise.

Q: Implement, using SQL, a database of at least 3 tables and show how to use the virtual database to…

A: The SQL database named Company contains three tables: Employee : containing basic details about an…

Q: Explain shadow paging database recovery type with the help of a diagram.

A: According to the information given:- We  have to define the shadow paging database recovery type…

Q: What exactly is sequential consistency? Why is it so difficult to put in place?

A: Both of them are kinds of consistency models that are widely accepted and used in the field of…

Q: In the process of deleting rows, columns, and tables, what is one important thing to remember?

A: Introduction : Ethernet's introduction: Ethernet is a wired networking technology that was defined…

Q: Discuss the advantages of using the database approach as against the file-based approach.

A: A database is a coordinated assortment of organized data, or information, regularly put away…

Q: What does the Big O category mean in terms of the execution time of the database? If there is only…

A: Big O is the top limit that is the most stringent when it comes to functions' worst-case temporal…

Q: What does the data warehouse's time variant feature imply?

A: Answer. Data warehouse's time variant feature imply: "Time variant" means that the data warehouse is…

Q: What is the insert anomaly, update anomaly, and delete anomaly computer?

A: Intro Computer bug: There is no such thing as a flawless operating system or piece of software;…

Q: 02 A 96 62 ac C2 Consider the ERD given above; How many tables should be created? Select one: O a.6…

A: EXPLANATION: The entities which are present in the above ERD are: A B C D Following is the…

Q: Is there anything more hard than working with time-variant data when it comes to the design of…

A: Database architecture is a visual representation of the design of a database management system. It…

Q: is most likely to cause a data inconsistency_ deletion anomaly a O relational anomaly b update…

A: The correct answer is option C. Update anomaly

Q: Implement, using SQL, a database of at least 3 tables and show how to use the virtual database to…

A: the answer is below:-

Q: With the use of two instances, explain the distinction between internal and external fragmentation.…

A: Required: With the use of two instances, explain the distinction between internal and external…

Q: summarize the comparative features of sequential, indexed?

A: Sequential File Organization: A sequential file contains records that have been arranged by order.…

Q: What is the term "Denormalization"?

A: Denormalization is the process of adding precomputed redundant data to an otherwise normalized…

Q: Indexes that are not clustered and clustered are compared.

A: Comparison between clustered and non clustered index are mentioned below,

Q: What is the difference between Stripped and Spanned volumes? * Your answer

A: A striped volume combines areas of free space from multiple hard disks into one logical volume.…

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A: Definition: Tables are objects in a database that contain all of the information that is stored in…

Q: Where does one begin in the process of fixing a data-corruption problem?

A: Data corruption occurs when computer: Data errors occur when writing, reading, storing,…

Q: There is a central fact table and 4 dimensions – Time, A, B and C. The ratio m: n between 2…

A: There is a central fact table and 4 dimensions-Time,A,B and C.The ratio m:n between 2 attributes of…

Q: Computer Science Select table by your choice Apply horizontal fragmentation on it by using set of…

A: Horizontal fragmentation:              In horizontal fragmentation, table rows are dived into…

Q: Provide a brief description of the vocabulary of data terms. When and where does the data dictionary…

A: Data Dictionary: A data dictionary is a set of descriptions for programmers and anyone who need to…

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A: Database is a collection of large amount of data and there are so many ways to store data.

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A: We need to fill in what will become in the blanks. Here we have a statement for pBLAST algorithm.…

Q: Give examples to show at least two different ways to select subset of rows from a dataframe data.

A: #To select multiple rows use :df.loc[[1,5,7]]

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A: Actually, database is a used to stores the data.

Q: What is Sqoop-merge and explain its use?

A: Defined about Sqoop-merge and its use

Q: How can we reduce database write action times in Hibernate?

A: Solution: Hibernate provide dirty checking feature which can be used to reduce database write times.…

Q: What exactly is meant by the term "data fragmentation"? When we state that the data are fragmented,…

A: Launch: Data fragmentation refers to the process of breaking down a large database into smaller…

Q: e to generate reports mysql database

A: make a HTLM code to generate reports mysql database project

Q: 16. An algorithm of the order O(c") runs faster than a one of the order O(n!), where n is size o…

A: Answer in step2

Q: How might CASE tools be used to document the design of a data dictionary?

A: CASE stands for Software Aided System Engineering.

Q: Answer true or false. Bias and variance errors are errors that could be present in a raw structured…

A: answer is

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A: What is a key-value store? A key-value store, or key-value info, may be a form of knowledge storage…

Q: So, what exactly do you mean by "Data Purging"?

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A: Your answer is given below.    Introduction :- A balanced dataset is the one that contains equal or…

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A: Definition: Data fragmentation is the process of breaking down a large database into smaller…

Q: Consider the following table is used to store contact information: Name Company Address Phone1…

A:

Q: What are the types of normalization with respect to redundant and non-redundant database tables that…

A: Introduction of Normalization: In DBMS(Database Management System), normalization is the process to…

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A: Introduction: The tightest upper bound of the function is Big O, which represents the worst-case…

Q: What are the different schemes for structuring page tables? Explain hierarchical paging (in…

A: Different schemes for structuring page tables are mentioned below: Hierarchical Paging Hashed Page…

Q: two different ways to select subset of rows from a dataframe data.

A: Code: import pandas as pd # Reading csv file datadf = pd.read_csv("aqua.csv") # subset of rows from…

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A: Vertical fragmentation are subset of attributes/column. Vertical fragmentation can increase…

Q: Consider a database with the following tables: Using sql query or steps Patient(PatientID.…

A: I give the code along with the output screenshot

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Q: Explain why record allocation to blocks has a significant influence on database system performance.

A:

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A: Deadlock is an infinite starvation and for deadlock occurring there are 4 conditions that includes…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.