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Introduction to Database System

Introduction to Database System
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?

ZIP
SAVE
PACK
COMMIT

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Introduction to Database System
1:1, 1:N and N:M relationships are also known as HAS-A relationships.

False
True

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Introduction to Database System
The DBMS acts as an interface between what two components of an enterprise-class database system?

Data and the database
Database application and SQL
The user and the database application
Database application and the database

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

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

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Introduction to Database System
Which of the following command(s) is(are) used to recompile a stored procedure in SQL?

COMPILE PROCEDURE
MODIFY PROCEDURE
None of the listed here
ALTER PROCEDURE

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Introduction to Database System
Structured Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.

False
True

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