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Introduction to SQL

Introduction to SQL
Which one of the following sorts rows in SQL?

GROUP BY
ALIGN BY
SORT BY
ORDER BY

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Introduction to SQL
Which of the following is valid SQL for an Index?

ADD INDEX ID;
CHANGE INDEX ID;
CREATE INDEX ID;
REMOVE INDEX ID;

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Introduction to SQL
The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.

True
False

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Introduction to SQL
The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs

Nothing
Hi
TRUE
FLASE

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Introduction to SQL
The benefits of a standard relational language include which of the following?

Applications are not needed
Reduced training costs
All of these
Increased dependence on a single vendor

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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, MIN, MAX, MULT
SUM, AVG, MULT, DIV, MIN

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