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CMSC 461 Database Management Systems(100% Everfree answers) DATA 630: Applied Database Management (100% Guaranteed) Database Management Exam 1(Completely solved) Concepts of Database Management, 10th ed. Module 1 Questions (100% Error-free answers) Module 4 Database management tools (100% Guaranteed)

Historically, what has driven many information technology developments? correct answers Data needs What is data modeling primarily used for? correct answers To represent relationships between business entities In data-related terms, what is an entity? correct answers A thing in the real world with an independent existence What is a record in storage-related terms? correct answers A group of related fields What is the primary feature of a database management system? Efficient dat...

Database correct answers A collection of data organized in a manner that allows access, retrieval, and use of that data Database Management Systems correct answers Software that allows you to use a computer to create a database; add, change, and delete data in the database; ask and answer questions concerning the data; create forms and reports using the data. Relational Database correct answers Collection of tables, each of which contains information on a specific subject Records cor...

1. Define each of the following terms: a. data b. field c. record d. file correct answers Data: raw facts Field: an attribute, same data type Record: related data that describes an entity File: a collection of related records. 2. What is data redundancy, and which characteristics of the file system can lead to it? correct answers Data redundancy occurs when the same data are stored in multiple places unnecessarily. The use of spreadsheets and tables in different parts of the organ...

What are the 5 SQL built in functions? correct answers COUNT SUM AVG MIN MAX Entity correct answers some identifieable thing that users want to track. Relation correct answers a two-dimensional table that has certain characteristics Characteristics of a relation correct answers - each relation in a database has a unique name - rows contain data about a specific instance of an entity - columns contain data about attributes of the entity class - all entries in a column are of t...

What is a database? correct answers A collection of files storing related data. Give an Example of databases: correct answers 1: Accounts database 2: Payroll database 3: Amazon's product database 5: Airline reservation database What are the four components of a database system? correct answers 1: Users 2: Database Application 3: Database Management System(DBMS) 4:Database What does a user of a database system do correct answers 1: Use a database application to track things....

SQL correct answers structured query language, the most widely used language for creating, manipulating, and querying relational DBMSs. relation correct answers a table with rows and columns; consists of a relation schema and a relation instance integrity constraint correct answers condition specified on a database schema and restricts the data that can be stored in an instance of the database relation instance correct answers a table; satisfies the domain constraints in the relatio...

keep track of things correct answers A database may be used to help people: A database may be used to help people: correct answers know the current inventory levels of products their company sells -look up their checking account balance over the Internet. -check on the estimated arrival time of an incoming flight at an airport. -track which student is assigned to a particular advisor. relational model correct answers Today almost every commercial database is based on: Structured Q...

Data correct answers Computers store data in file, which can be defined as correct answers simplify as a collection of data. A computer file is organized in a correct answers particular way with well-defined structure for the information in the file. A computer file consists of a collection of correct answers records each of which is made up of fields. The various fields consist of correct answers groups of characters Byte correct answers the smallest unit of storage in byt...

Redundancy wastes space because you are storing different types of data in the same place. correct answers false When you need to change data, redundancy makes your changes more cumbersome and time-consuming. correct answers true An entity is also defined as an attribute. correct answers false An attribute is a characteristic or property of an entity. correct answers true An attribute is known as a column in relational databases. correct answers true An entity is an informati...