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Introduction to SQL

Introduction to SQL
To establish a range of values, < and > can be used.

False
True

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Introduction to SQL
The SQL statementSELECT ROUND(45.926, -1) FROM DUAL;

is illegal
prints garbage
prints 045.926
prints 50

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Introduction to SQL
The SQL statementSELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL;

1234
2345
6789
456789

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Introduction to SQL
Which of the following SQL commands can be used to add data to a database table?

INSERT
APPEND
UPDATE
ADD

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Introduction to SQL
SQL can be used to:

modify database data only.
All of these
create database structures only.
query database data only.

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Introduction to SQL
What is the meaning of LIKE '%0%0%'

Feature ends with two 0's
Feature begins with two 0's
Feature has two 0's in it, at any position
Feature has more than two 0's

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