NULL Definition & Meaning - Merriam-Webster
Null often pops up in legal and scientific contexts; it was originally used in Scottish law and still carries the meaning "having no legal …
What Is Null? - Computer Hope
Sep 14, 2026 · The concept of null and its significance in computing with our comprehensive definition, examples, and explanations. …
Null - Wikipedia
Null (SQL) (or NULL), a special marker and keyword in SQL indicating that a data value does not exist, is not known, or is missing …
NULL | English meaning - Cambridge Dictionary
NULL definition: 1. having no legal force: 2. with no value or effect: 3. (of a set or matrix) containing nothing…. Learn more.
null - JavaScript | MDN - MDN Web Docs
Oct 28, 2025 · JavaScript is unique to have two nullish values: null and undefined. Semantically, their difference is very minor: …
NULL - cppreference.com
A null pointer constant may be converted to any pointer type; such conversion results in the null pointer value of that type.
Null (SQL) - Wikipedia
In the SQL database query language, null or NULL is a special marker used to indicate that a data value does not exist in the …
What Is a Null Hypothesis? Definition and Examples
Mar 10, 2026 · Learn what a null hypothesis is, how it works in research, and why scientists “fail to reject” rather than “accept” it — …
c# - What does null! statement mean? - Stack Overflow
Feb 16, 2019 · It can be used on a type to control Nullability, it is then called the "Null Forgiving Operator". Basically, null! applies …
Null - Glossary | MDN
Jul 11, 2025 · In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid …