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Introduction to Database System

Introduction to Database System
Large collections of files are called

file system
databases
None of these
records
fields

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Introduction to Database System
Which command is used to remove an index from the database in SQL?

ROLL BACK INDEX
DELETE INDEX
DROP INDEX
REMOVE INDEX

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Introduction to Database System
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

child
parent
instance
subtype

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Introduction to Database System
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.

Delete
Index
Update
Sort key

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Introduction to Database System
In SQL, which command(s) is(are) used to enable/disable a database trigger?

All of the listed here
MODIFY USER
CHANGE USER
ALTER TRIGGER

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Introduction to Database System
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?

Many-to-Many Relationship
One-to-Many Relationship
Composite Relationship
One-to-One Relationship

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