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While dining out in a restaurant a man suddenly chokes on a piece of meat.The waitress is also a student nurse and comes to the man's aid.She asks him if he can talk.The man responds by shaking his head no and grabbing at his neck.What is the significance of the man's inability to talk?
Append Only
A setting for a database field that allows new data to be added while preserving the existing data, often seen in commenting or logging features.
Null
A value used in databases and programming to represent the absence of a value or a 'nothing' state.
Zero-Length
A term that refers to a string or text field that is allowed to have no characters, essentially being empty but not null.
Multivalued
Describes an attribute or field in a database that can hold multiple values in a single record.
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