Question: which Of The Following Is The Most Prominent Data Manipulation Language Today?

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Which of the following is an automated or manual file that stores information about data elements and data characteristics such as usage physical representation ownership authorization and security group of answer choices?

An automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security is the: data dictionary.

Which of the following enables a DBMS to reduce data redundancy?

Which of the following features enables a DBMS to reduce data redundancy and inconsistency? physical database available for different logical views. presents data as they would be perceived by end users. combines relational tables to provide the user with more information than is otherwise available.

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When the same attribute in related data files has different values this is called data?

Answer: Data redundancy occurs when different divisions, functional areas, and groups in an organization independently collect the same piece of information. Because it is collected and maintained in so many different places, the same data item may have:1.

Is the process of streamlining data to minimize redundancy?

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called: optimization.

Which of the following is an automated or manual file?

Option (C) is the correct answer of this question. Explanation: Data Dictionary is an artificial or manual file that stores data product information and data aspects such as use, physical representation, ownership, authorisation, and protection. A Data dictionary is a hierarchical information repository.

Which of the following enables users to view the same data in different ways?

Multidimensional analysis enables users to view the same data in different ways using multiple dimensions.

What is an example of pre digital data storage?

A LIBRARY CARD CATALOG is an example of pre – digital data storage that is comparable to a database. A library card catalog stores information about all the items that are available in a particular library or groups of libraries. The traditional library card catalog has now been replaced with an electronic version.

What is the logical view of a database?

The logical database view is how the data appear to the user to be stored. This view represents the structure that the user must interface with in order to extract data from the database.

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Which of the following technologies would you use to analyze the social media data?

Chapter 6

Question Answer
A schematic of the entire database that describes the relationships in a database is called an: Entity-relationship diagram
Which of the following technologies would you use to analyze the social media data collected by a major online retailer: Hadoop

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Which tools enables users to view the same data in different ways using multiple dimensions?

Online Analytical Processing (OLAP) supports multidimensional data analysis, enabling users to view the same data in different ways using multiple dimensions, for example: How many dishwashers were sold in the East in June.

What occurs when the same data is duplicated in multiple files of a database?

Answer: Data redundancy occurs when the same data is duplicated in multiple files of a database.

When the same attribute may have different values is called?

Requirements Analysis and Conceptual Data Modeling A multivalued attribute of an entity is an attribute that can have more than one value associated with the key of the entity. For example, a large company could have many divisions, some of them possibly in different cities.

Which of the following is the first step in creating a database?

The design process consists of the following steps:

  • Determine the purpose of your database.
  • Find and organize the information required.
  • Divide the information into tables.
  • Turn information items into columns.
  • Specify primary keys.
  • Set up the table relationships.
  • Refine your design.
  • Apply the normalization rules.

What is non traditional database?

A non – relational database stores data in a non -tabular form, and tends to be more flexible than the traditional, SQL-based, relational database structures. It does not follow the relational model provided by traditional relational database management systems.

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Is a field holding the unique identifier of the a record?

A field identified in a record as holding the unique identifier for that record is called the: key field.

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