Which Is a Compound

question 23

Multiple Choice

Which is a compound?

• A) mercury
• B) blood
• C) sugar
• D) air

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Definitions:

Is Null

A term used in programming and databases to indicate that a data value does not exist or is unknown.

Lookup List

A feature in databases and applications that allows field values to be selected from a pre-defined list, facilitating data entry accuracy and consistency.

Table Design

The process and methodology of structuring a database table to efficiently store, access, and manage data, including defining fields, data types, and relationships.

Null Field Values

Refers to instances where fields in a database table have no data or value stored in them.