Data Management Foundation C175 WGU Latest Version 100% Pass

Data Management Foundation C175 WGU Latest Version 100% Pass Associative Entity An associative entity is an element of the entity-relationship model. All relationships for the associative entity should be many. Attribute An attribute is a property or characteristic of an entity. Binary relationship A binary relationship is a relationship between two entity types. Candidate Key Is any column or a combination of columns that can qualify as unique key in database. Cardinality Cardinality represents the maximum number of entities that can be involved in a particular relationship. Cartesian product 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 Will delete all records that reference the primary key column subquery Returns a single column of one or more values. data encryption 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 Is a methodology for organizing attributes into tables so that redundancy among the non-key attributes is eliminated. Data volatility Describes how often stored data is updated. Data Volume Assessment Understanding of how much data will be in a database or a table within a database Database A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. DCL Data control language is used to control access to data stored in a database. DDL 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 Definer is a MySQL term where AuthID is the same for another DBMS Denormalization The act of duplicating data in a database for performance or the preservation of historical information disaster recovery Involves rebuilding an entire information system or significant parts of one after a catastrophic natural disaster such as a hurricane, tornado, earthquake, building collapse, or even a major fire. DML Data manipulation language refers to the four basic operations that can and must be performed on data stored in any DBMS: data retrieval, data update, insertion of new records, and deletion of existing records. E-R model An E-R model is a data model for describing a database in an abstract way. embedded mode The SELECT command is embedded within the lines of a higher-level language program and functions as an input or "read" statement for the program. Entity An entity is an object or event in our environment that we want to keep track of. Foreign Key Is a field (or collection of fields) in one