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Introduction to SQL

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

False
True

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Introduction to SQL
The result of every SQL query is a table.

True
False

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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
Which of the following must be enclosed in double quotes?

Dates
All of these
Strings
Column Alias

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Introduction to SQL
What is the full form of SQL?

Simple Query Language
None of these
Structured Query Language
Structured Query List

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Introduction to SQL
A subquery in an SQL SELECT statement:

can only be used with two tables.
has a distinct form that cannot be duplicated by a join.
cannot have its results sorted using ORDER BY.
can always be duplicated by a join.

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