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Introduction to SQL

Introduction to SQL
Which of the following command makes the updates performed by the transaction permanent in the database?

ROLLBACK
COMMIT
TRUNCATE
DELETE

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Introduction to SQL
The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs

FLASE
TRUE
Hi
Nothing

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

SELECT
READ
QUERY
None of these

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Introduction to SQL
Which SQL keyword is used to retrieve a maximum value?

MOST
MAX
TOP
UPPER

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

All of these
ALTER TABLE
MODIFY TABLE
CHANGE TABLE

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Introduction to SQL
The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total.

False
True

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