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Introduction to SQL

Introduction to SQL
Which SQL statement is used to update data in a database?

UPDATE
MODIFY
SAVE AS
SAVE

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
SQL is:

an operating system.
a data sublanguage.
a programming language.
a DBMS.

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Introduction to SQL
The SQL WHERE clause:

Neither A nor B are correct.
Both A and B are correct.
limits the row data are returned.
limits the column data that are returned.

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Introduction to SQL
What operator tests column for the absence of data?

NOT operator
None of these
IS NULL operator
EXISTS operator

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Introduction to SQL
ON UPDATE CASCADE ensures which of the following?

Normalization
All of these
Data Integrity
Materialized Views

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