The joining of two or more tables is frequently required while executing database queries. That's what happened

Q: What are the three situations that suggests relations be denormalized before database implementation

A: Denormalization is the process of adding redundant data in normalised database.

Q: Describe how the foreign key / primary key relation works between tables and why it is important in…

A: Given: Describe how the foreign key / primary key relation works between tables and why it is…

Q: In a table of a relational database, columns correspond to fields, and rows correspond to…

A: Option (a) is correct option. It's  Record.

Q: Suppose your company has built a database application that runs on a centralized database, but even…

A: In a centralized system, to handle the transaction load, query performance has to be improved.Query…

Q: Create the Database Schema, the Normalize table, and the Final ERD

A:

Q: Specify the following queries on the database schema shown in Figure attached using queries in SQL…

A: Question 1: In order to solve the above query, we need to join two tables named PROJECT and…

Q: In this part you will be to map the EER schema design to a relational database schema, and create…

A: Customer (Name, IDNo, Address, Email, Username, Password) IDNo – Primary Key create table Customer…

Q: The marketing team wants to celebrate the success of StayWell with a party. The team wants a table…

A: SELECT FIRST_NAME as PARTICIPANT, SURNAME AS LAST_NAME FROM RESIDENTSUNIONSELECT FIRST_NAME as…

Q: You have been employed as a Database Developer, and you have been given the choice to utilize either…

A: Database Developer: A Database Developer, also known as a Database Programmer, is in charge of…

Q: Based on the picture, create the ERD for this database. Then explain if the tables exhibit…

A: Before design ERD diagram of given database.Let's know about few lines of ERD. The ERD stands for…

Q: most important method th

A: Step 1: The organization of data according to a database model is known as database design.The…

Q: Transaction is an action or series of actions the execution of which should lead to a consistent…

A: Following are the properties that the transactions should have for correct executions:

Q: What would happen if a database's referential integrity was violated? What mistakes do you make the…

A: Please find the answer below :

Q: Given the database relation CUSTOMER (Customer ID, Name, Address, Customer- Status, Customer type).…

A: The primary key is a constraint represented during the creation of a table in the database. The…

Q: What is the difference between SQL performance tuning and database performance tuning? What are the…

A: Step 1  The answer is given in the below step

Q: "Mpho is very excited about the new information system to be built for his spaza shop. In this…

A: Let us create database entities for the shop. Let the three tables be Products, Customer, Sales .

Q: Using the film database you have, answer the following queries in your schema then write them down…

A: SUMMARY: -   Hence, we have discussed all the points.

Q: re there any other database relationships besides 1 M and 1:1? If so, describe the relationship and…

A: Required: Are there any other database relationships besides 1 M and 1:1? If so, describe the…

Q: In your own words describe what are some of the problems caused by incomplete or improper…

A: Here are the different problems that are created when normalization is not done properly:

Q: Pick a potential problem with database locks on tables/views/resources and one popular way database…

A: Database locks on data item Solution to problems with database locks

Q: Discuss any five data dictionary views which provides key information to the Database Administr

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

Q: trigger

A: A trigger is a special type of stored procedure in a database that automatically runs when a special…

Q: The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in…

A:

Q: Task 1: Create a database in Access or in SQL server or in any other RDBMS: Create a database…

A: Find the required answer given as below :

Q: What are the benefits of using a transaction to group database operations together that need to…

A: To be determined: The benefits of using a transaction to group database operations together that…

Q: When it comes to database independence, how can you tell the difference between physical and logical…

A: Physical data independence is mostly concerned with how data is saved in the system. whereas logical…

Q: List three common scenarios in which relations should be denormalized prior to database…

A: Introduction: A normalised database typically involves combining several tables to get queries;…

Q: What are the reasons that some experts are against the practice of denormalization in database…

A: Normalized relations are denormalized into non-normalized requirements during the denormalization…

Q: What are the 3 situations that suggests relations be denormalized before database implementation

A: Normalized relations are turned into non-normalized requirements mostly during denormalization…

Q: What is the purpose of a database audit trail? Explain in no more than 60 words how Extended Events…

A: Generally, database auditing is to know who and when accessed your database tables and what…

Q: What are the three ways to handle missing field values in database management?

A: The effect of MISSING FIELD VALUES ARE NULL depends on whether POSITION is used to explicitly state…

Q: What is the purpose of database normalization

A: Answer : It is a process to organizing the data in the database.   By applying this process the…

Q: Is 0 (zero) and NULL equivalent in database table? Explain with reason.

A: Answer :  --   No both are not equivalent

Q: How are database statistics obtained? What database statistics measurements are typical of tables,…

A: Database Statistics:   Database statistics is defined as the number of measurements that are…

Q: What is the division of data saved in a row of a table in a database

A: In a database, data is saved in a row in a table: In most cases, data is kept as rows in a table.

Q: Different user views are dealt at ________________ level of database architectureSingle line text.

A: Three schema Architecture The ANSI/SPARC architecture, commonly known as three-level architecture,…

Q: create a table for the class entity in an ER diagram of a school system. Show the composite key in…

A: In the School system. there are many entities like Admin Teacher Student Subject Division Class…

Q: What is database audit trail?

A: Database audit trail: An audit trail is a step-by-step record by which accounting, trade details,…

Q: What is the purpose of normalization? (in designing database)  Explain the difference between 2NF…

A: Ans 1-   An approach for organizing data in a database is normalization. A database must be…

Q: What does it mean to say that a database displays both entity integrity and referential integrity?

A: In database design, all the data is stored in different tables. Entity and referential integrity are…

Q: What is database Normalization?

A: Database Normalization Database Normalization is the process of structuring a relational database.…

Q: Talk about the importance of database backup and recovery procedures and what they do. Then, go over…

A: Making a copy of the data that can be recovered in the event of a data failure is the primary goal…

Q: Suppose your company has built a database application that runs on a centralized database, but even…

A: In a centralized system, to handle the transaction load, query performance has to be improved.Query…

Q: What is database performance tuning?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 1. Create the following tables with appropriate column and table constraints in your chosen…

A: We need to create our own database. To create our own database as : Create database University;…

SQL Query

Structured Query Language is the full form of SQL. It is one of the standard languages to deal with the relational database. It is used to insert, update, delete, and search the records stored in a RDBMS. The relational databases are created and managed by using SQL.