Normalization is a process of organizing the data in the database to avoid data redundancy, insertion anomaly, update anomaly & deletion anomaly. Apply the normalization process in the following table: empNum lastName firstName deptNum deptName deptCity deptCountry 1001 Andrews Jack 1 Accounts New York United States 1002 Schwatz Mike Technology New York United States 1009 Beker Harry 3 HR Berlin Germany 1007 Harvey Parker 3, 4 HR, Admin London United Kingdom

Q: Why do certain experts in database administration see denormalization as something to be avoided?

A: Database normalization is a widely accepted principle in database design that aims to eliminate data…

Q: Observe the table ENROLLMENT: ENROLLMENT StudentName MajorID MajorName English StudentID 111 Joe E…

A: A deletion anomaly  is the accidental loss of  data because of cancellation of different  data.

Q: On what attributes should indexes be defined to speed upthis query? Give the reasons?

A: Actually, given question regarding query.

Q: Consider the transaction database in the table below: TID items_bought 1 {a, b, c, d} 2 {b, c, e,…

A: Let D be a database of transaction There are five transactions in this database, that is, D = 5. The…

Q: Given the following two tables answer the question below Employee ID 25 205 392 *** Department Dept…

A: HI THEREI AM ADDING ASNWER BELOWPLEASE GO THROUGH ITTHANK YOU

Q: Explain why an index is only helpful if the values of an attribute are sufficiently varied

A: Introduction Use of an index with a wide range of values A file index is a table or other data…

Q: Given the default schema of a database:

A: Introduction: SQL queries are the queries that are used in structured query languages just to…

Q: The following tables form part of a database held in a relational DBMS: Hotel (hotelNo, hotelName,…

A: Please refer to the following step for the complete solution to the problem above.

Q: In a relational database, the select process may help minimise table size by skipping columns that…

A: Introduction: A relational database is a type of database that stores data in tables, where each…

Q: By the use of a select operation, a relational database may reduce the number of columns in a table…

A: The select operation is essentially an operation that searches the data that is included in the…

Q: The use of indices speeds up query processing, although it is usually a terrible idea to establish…

A: Introduction: Indexing in a Database Management System (DBMS): Indexing is a time-saving way of…

Q: oan Yancey has been asked to create a database for her company, Yancey Shipping. The database is to…

A: (Table 1) Employee Information:Fields - Last Name, First Name, Street Address, City, State, Zip…

Q: Practical 1: Write a menu driven program that runs till the user desires, Menu is given below with…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: This is section 1 answer (just do the section 2 only)Section 1: Step 1: Normalize the TableTo…

A: Step 1: Let's discuss the rationale and relationships between the tables created in the…

Q: By the use of a select operation, a relational database may reduce the number of columns in a table…

A: The select operation is essentially an operation that searches the data contained inside the table…

Q: Colonial Adventure Tours is considering offering outdoor adventure classes to prepare people to…

A: Given data, Colonial Adventure Tours is considering offering outdoor adventure classes to prepare…

Q: Single level ordered indexes are used in every DBMS, sometimes deployed automatically, sometimes…

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.