Database Management > EXAM > Data Management Foundation/100% VERIFIED (All)
Data Management Foundation/100% VERIFIED
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Associative Entity - ANS-An associative entity is an element of the entity-relationship model. All relationships for the associative entity should be many. Attribute - ANS-An attribute is a propert ... y or characteristic of an entity. Binary relationship - ANS-A binary relationship is a relationship between two entity types. Candidate Key - ANS-Is any column or a combination of columns that can qualify as unique key in database. Cardinality - ANS-Cardinality represents the maximum number of entities that can be involved in a particular relationship. Cartesian product - ANS-Usually the result of a missing join condition or a method of expanding the data of 1 table by the number of rows in the second table. Cascade Delete - ANS-Will delete all records that reference the primary key column subquery - ANS-Returns a single column of one or more values. data encryption - ANS-When data is encrypted, it is changed, bit by bit or character by character, into a form that looks totally garbled. It can and must be reconverted, or decrypted, back to its original form to be of use. Data normalization - ANS-Is a methodology for organizing attributes into tables so that redundancy among the non-key attributes is eliminated. Data volatility - ANS-Describes how often stored data is updated. Data Volume Assessment - ANS-Understanding of how much data will be in a database or a table within a database Database - ANS-A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. DCL - ANS-Data control language is used to control access to data stored in a database. DDL - ANS-Data definition language - involves instructing the DBMS software on what tables will be in the database, what attributes will be in the tables, which attributes will be indexed, and so forth. Definer - ANS-Definer is a MySQL term where AuthID is the same for another DBMS [Show More]
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