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Introduction to SQL

Introduction to SQL
Which of the following command makes the updates performed by the transaction permanent in the database?

ROLLBACK
COMMIT
TRUNCATE
DELETE

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

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

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

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Introduction to SQL
Count function in SQL returns the number of

values.
columns.
distinct values.
groups.

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Introduction to SQL
Microsoft Access has become ubiquitous, and being able to program in Access is a critical skill.

False
True

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Introduction to SQL
The SQL WHERE clause:

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

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