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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
Deletion Anomalies: Loss of important Information: In some cases, useful information may be lost when a tuple is deleted. For instance, if we delete the tuple corresponding to stu
Using a database design approach of your choice, produce a logical design for Pharma. 1) Your answer must consist of ONE the following: An entity-relationship (ER) diagra
A field-groups statement or an insert statement reverses storage space and transfers values. False.
Strong entity set and weak entity set? Strong entity set and weak entity set: A strong entity set has a primary key. All tuples in the set are distinguishable through that key.
crete a data base relationship model Entity: Students; Professors; Dormitories buildings; Attributes of students: Name; Address; Dorm;
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
gyan gurukul is a software company that provides software related solution.
What benefits can a company gain by managing its own information infrastructure and servicea
Given the following set of functional dependencies {cf?bg, g?d, cdg?f, b?de, d?c} defined on R(b,c,d,e,f,g) a.Find a non-redundant cover. b.Find a canonical cover.
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