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Introduction to SQL

Introduction to SQL
Which of the following group functions ignore NULL values?

COUNT
SUM
All of these
MAX

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Introduction to SQL
Which SQL keyword is used to sort the result-set?

SORT BY
ORDER
SORT
ORDER BY

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

All of these
Normalization
Materialized Views
Data Integrity

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Introduction to SQL
Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.

True
False

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Introduction to SQL
Which of the following SQL commands is used to retrieve data?

DELETE
JOIN
INSERT
SELECT

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

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

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