nullnĘŚl
null (v)
- present
- null
- past
- nulled
- past participle
- nulled
- present participle
- nulling
English Definitions:
nothing, nil, nix, nada, null, aught, cipher, cypher, goose egg, naught, zero, zilch, zip, zippo (adj)
a quantity of no importance
"it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear zilch about it"
null, void (adj)
lacking any legal or binding force
"null and void"
null (Noun)
A non-existent or empty value or set of values.
null (Noun)
Zero quantity of expressions; nothing.
null (Noun)
the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
null (Noun)
the attribute of an entity that has no valid value.
null (Noun)
One of the beads in nulled work.
null (Verb)
to nullify
null (Adjective)
Having no validity, "null and void"
null (Adjective)
insignificant
null (Adjective)
absent or non-existent
null (Adjective)
of the null set
null (Adjective)
of or comprising a value of precisely zero
null (Adjective)
causing a complete loss of gene function, amorphic.
Null
Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database. Introduced by the creator of the relational database model, E. F. Codd, SQL Null serves to fulfill the requirement that all true relational database management systems support a representation of "missing information and inapplicable information". Codd also introduced the use of the lowercase Greek omega symbol to represent Null in database theory. NULL is also an SQL reserved keyword used to identify the Null special marker. Null has been the focus of controversy and a source of debate because of its associated three-valued logic, special requirements for its use in SQL joins, and the special handling required by aggregate functions and SQL grouping operators. Computer science professor Ron van der Meyden summarized the various issues as: "The inconsistencies in the SQL standard mean that it is not possible to ascribe any intuitive logical semantics to the treatment of nulls in SQL." Although various proposals have been made for resolving these issues, the complexity of the alternatives has prevented their widespread adoption. For people who aren't database experts, a good way to remember what null means is to remember that in terms of information, "lack of a value" is not the same thing as "a value of zero"; similarly, "lack of an answer" is not the same thing as "an answer of no". For example, consider the question "How many books does Juan own?" The answer may be "zero" or "null". In a database table, the column reporting this answer would start out with a value of null, and it would not be updated with "zero" until we have ascertained that Juan owns no books. Similarly, when the question is, "Does Juanita own a car?", the answer "we don't know" is not the same thing as "no". The former yields a database entry of "null"; only the latter yields a database entry of "no".
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"null." Kamus.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.kamus.net/english/null>.
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