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Introduction to SQL

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

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

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

2345
6789
1234
456789

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

All of these
NUMERIC
FLOAT
CHARACTER

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Introduction to SQL
SQL data definition commands make up a(n) ________ .

DML
XML
HTML
DDL

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Introduction to SQL
A dynamic view is one whose contents materialize when referenced.

True
False

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Introduction to SQL
The result of a SQL SELECT statement is a ________ .

file
report
form
table

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