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Introduction to SQL

Introduction to SQL
Which SQL statement is used to delete data FROM a database?

COLLAPSE
ALTER
DELETE
REMOVE

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Introduction to SQL
The SQL statement that queries or reads data from a table is ________ .

SELECT
READ
None of these
QUERY

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Introduction to SQL
In SQL, which command(s) is(are) used to change a table's storage characteristics?

CHANGE TABLE
MODIFY TABLE
All of these
ALTER TABLE

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

Equijoin
None of these
Self-Join
Non-Equijoin

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

prints 045.926
is illegal
prints 50
prints garbage

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

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

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