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Introduction to Database System

Introduction to Database System
In SQL, which command(s) is(are) used to create a synonym for a schema object?

CREATE SCHEMA
All of the listed here
CREATE SYNONYM
CREATE SAME

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Introduction to Database System
A functional dependency is a relationship between or among:

attributes.
tables.
rows.
relations.

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Introduction to Database System
The language used in application programs to request data from the DBMS is referred to as the

All of the listed here
DML
DDL
query language

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Introduction to Database System
Data security threats include

hardware failure
privacy invasion
fraudulent manipulation of data
all of the listed here

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Introduction to Database System
In SQL, which command(s) is(are) used to enable/disable all triggers on a table?

MODIFY TRIGGERS IN TABLE
All of the listed here
ALTER TABLE
ALTER TRIGGERS

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Introduction to Database System
Which of the following is not a restriction for a table to be a relation?

The columns must be ordered.
The cells of the table must contain a single value.
No two rows in a table may be identical.
All of the entries in any column must be of the same kind.

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