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Introduction to SQL

Introduction to SQL
A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

True
False

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Introduction to SQL
The command to remove rows from a table 'CUSTOMER' is:

UPDATE FROM CUSTOMER ...
REMOVE FROM CUSTOMER ...
DELETE FROM CUSTOMER WHERE ...
DROP FROM CUSTOMER ...

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Introduction to SQL
Which of the following join is also called as an 'inner-join'?

Equijoin
None of these
Non-Equijoin
Self-Join

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Introduction to SQL
You can add a row using SQL in a database with which of the following?

INSERT
MAKE
ADD
CREATE

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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.

DISTINCT
ONLY
UNIQUE
SINGLE

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

All of these
FLOAT
CHARACTER
NUMERIC

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