Informally describe the conditions to be met for a relation to be in Second Normal Form. In terms of functional dependency, describe why the following CUSTOMER_PURCHASE relation is not in second normal form. This table describes every instance of an individual Customer purchasing a Product. How would this relation suffer from Update Anomalies? CUSTOMER_PURCHASE (CUSTOMER_ID, PRODUCT_ID, PURCHASE_DATE, PURCHASE_AMT, PRODUCT_DESCRIPTION, CUSTOMER_NAME)   Note the relation’s primary key is underlined

Q: EmployeeID is the primary key for the relation below. Which column violates a rule (characteristic)…

A: When creating column names for tables in a relational database, it's important to follow certain…

Q: nformally describe the conditions to be met for a relation to be in Third Normal Form. Describe why…

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Q: This question is based on the following relation and sample data, where Employee Social Security…

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

Q: Consider the following schema for a student relation. {Student ID, Last Name, First Name, Course ID,…

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A: Answer:

Q: Q1. Create these two relations, then insert the tuples. (Instructor relation: ID is PK, dept_name is…

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Q: Mapping: Create relational schemas for the ER diagram given below. Indicate clearly the primary and…

A: The relational schema has been given in step 2.

Q: Under what circumstances can a relation have duplicate rows?

A: GIVEN: Under what circumstances can a relation have duplicate rows?

Q: LEGAL_ENTITY LE_No LE Name LE_Net Worth Person_Or_Org LE_Type (Plaintiff? Defendant?) LE_Type:…

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Q: Consider the following relations: Album (albumId: integer, title: string, artistId (FK): integer)…

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Q: What data types would you use for the attributes in this entity? How would you code a CREATE TABLE…

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Q: The value of the candidate key cannot uniquely identify each tuple in a relation. True O False…

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Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

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Q: The degree is the number of tuples in a relation. Select one: a. False b. True

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Q: Consider the following schema for a student relation. Student {Student ID, Last Name, First Name,…

A: Answer: our instruction is answer the first three part from the first part and I have given answered…

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.