Examlex
Which of the following is NOT a main group of chemical elements on the Periodic Table?
Field List
A dynamic area or pane in a software application or database where field names or data selections are listed for user operations.
Zero-Length
Refers to a string or data value that contains no characters or elements, often used to indicate a missing or undefined value.
Null
A value that signifies the absence of data or a missing or unknown value in a database or programming context.
Is Null
A condition in programming and database management indicating that a variable or field contains no value or data.
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