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Introduction to SQL

Introduction to SQL
A dynamic view is one whose contents materialize when referenced.

True
False

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Introduction to SQL
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.

ONLY
UNIQUE
SINGLE
DISTINCT

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Introduction to SQL
What is the meaning of LIKE '%0%0%'

Feature has two 0's in it, at any position
Feature ends with two 0's
Feature begins with two 0's
Feature has more than two 0's

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Introduction to SQL
To establish a range of values, < and > can be used.

True
False

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Introduction to SQL
Which of the following is a valid SQL type?

FLOAT
NUMERIC
CHARACTER
All of these

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Introduction to SQL
Which of the following SQL query is correct for selecting the name of staffs from 'staffinfo' table where salary is 10,000 or 25,000?

SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000;
Both A and B
SELECT name FROM staffinfo WHERE salary IN (10000, 25000);
None of these

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