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Introduction to SQL

Introduction to SQL
There is an equivalent join expression that can be substituted for all subquery expressions.

True
False

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Introduction to SQL
Which of the following are the five built-in functions provided by SQL?

COUNT, SUM, AVG, MAX, MIN
SUM, AVG, MIN, MAX, NAME
SUM, AVG, MULT, DIV, MIN
SUM, AVG, MIN, MAX, MULT

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

False
True

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

All of these
Normalization
Data Integrity
Materialized Views

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Introduction to SQL
How to select all data from student table starting the name from letter 'r'?

SELECT * FROM student WHERE name LIKE 'r%';
SELECT * FROM student WHERE name LIKE '%r%';
SELECT * FROM student WHERE name LIKE '%r';
SELECT * FROM student WHERE name LIKE '_r%';

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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?

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

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