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BCIS 4610 FINAL Question and answers rated A+ 2024 R252,05   Add to cart
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BCIS 4610 FINAL Question and answers rated A+ 2024

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BCIS 4610 FINAL Question and answers rated A+ 2024 BCIS 4610 FINAL Primary Key - correct answer An attribute (or combination of attributes) whose value is unique across all occurrences of a relation. Relational Database Model - correct answer data represented as a set of tables or relati...

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  • September 3, 2024
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BCIS 4610 FINAL
Primary Key - correct answer ✔An attribute (or combination of attributes)
whose value is unique across all occurrences of a relation.


Relational Database Model - correct answer ✔data represented as a set of
tables or relations


Well Structured Relation - correct answer ✔a table; minimum redundancy


Normalization - correct answer ✔the process of complex data structures into
simple structures


Functional Dependency - correct answer ✔value of one attribute is
determined by the value of another attribute


Second Normal Form (2NF) - correct answer ✔nonprimary key attribute is
functionally dependent on the whole primary key


Third Normal Form (3NF) - correct answer ✔No functional (transitive)
dependencies between two (or more) nonprimary key attributes


Foreign Key - correct answer ✔appears as nonprimary key attribute in one
relation, and as primary key attribute in another relation


Referential Integrity - correct answer ✔a rforeign keys value must match
primary key in another relation OR foreign key value must be null

, Filed - correct answer ✔smallest unit of named app data


Data Type - correct answer ✔coding scheme, represents organizational data


Calculated field - correct answer ✔field that can be derived from other
database fields; a computer field


Default value - correct answer ✔a value a field will assume unless an explicit
valye is entered for that field


Null value - correct answer ✔indicates that the value for the field is missing
or otherwise unknown


Physical table - correct answer ✔a named set of rows and columns


Denormalization - correct answer ✔the process of splitting or combining
normalized relations into physical tables


Physical file - correct answer ✔a named of table rows stored in a contiguous
section of secondary memory


File organization - correct answer ✔a technique for physically arranging the
records of a file


Pointer - correct answer ✔a field of data that can be used to locate a field or
row


Sequential file organization - correct answer ✔a file organization in which
rows in a file are stored in sequence according to a primary key value

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