When Duplicate Column Names Exist in a Database and You

question 3

Multiple Choice

When duplicate column names exist in a database and you need to indicate the column to which you are referring,____.

• A)do not use these two tables together
• B)do not use the column names in the same statement
• C)write the table name only
• D)write both the table name and the column name,separated by a period

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Definitions:

Partial Melting

The process by which only a portion of a solid is melted, often occurring in the Earth's mantle, leading to the generation of magma.

Metamorphism

The process by which the mineral composition and structure of rocks are changed by heat and pressure, without melting.

Magma

Molten rock located beneath the earth's surface, which can erupt as lava during a volcanic eruption and solidify to form igneous rocks.

Heat

A form of energy associated with the movement of atoms and molecules in substances.