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Introduction to SQL

Introduction to SQL
The SQL keyword(s) ________ is used with wildcards.

LIKE only
IN only
NOT IN only
IN and NOT IN

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Introduction to SQL
Which of the following must be enclosed in double quotes?

Dates
Column Alias
All of these
Strings

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

1234
2345
456789
6789

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Introduction to SQL
________ was adopted as a national standard by ANSI in 1992.

Microsoft Access
SQL
Oracle
DBase

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Introduction to SQL
COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

True
False

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Introduction to SQL
How to select all data from student table starting the name from letter 'r'?

SELECT * FROM student WHERE name LIKE 'r%';
SELECT * FROM student WHERE name LIKE '%r';
SELECT * FROM student WHERE name LIKE '_r%';
SELECT * FROM student WHERE name LIKE '%r%';

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