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An ideal data dictionary should have everything a DBA wants to know about the database. 1 Conceptual, External, and internal database descriptions. 2. Descriptions of attr
Saving Derived Attributes to Avoid Re-computation As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,
What are the drawbacks of shadow-paging technique? The drawbacks of shadow paging is:- a) Commit Overhead b) Data fragmentation c) Garbage collection
#floating point representation is used to store
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Define Database layer? The database layer defines the data formats used in the database.
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
explain exhausitively the problems associated with er diagrams with ellustrations
Primary Key The primary key is the candidate key that is selected by the database designer as the principal denotes of identifying entities within an entity set. The left candi
Give an example of multiple inheritance. One example of multiple inheritance is a committee for students affair which include faculty and administrative staff member.
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