Hi friends,
I want to know What does NULL mean?
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Nattudurai EswaramurthyPosted Jun 8, 2012, 12:25 AM
NULL means nothing. i mean it doesnt contain any value. it doesnt mean that its equal to ZERO or Empty.
NULL !='' or NULL !=0
Jignesh TrivediPosted Jun 7, 2012, 11:58 PM
NULL means that data does not exist. NULL does not equal to 0 or an empty string. Both 0 and empty string represent a value, while NULL has no value.
In C#, null means one that does not refer to any object. null is the default value of reference-type variables.
hope this will help you.
VulpesPosted Jun 7, 2012, 12:47 PM
Technically, NULL is a 'marker' rather than a value and is untyped. It can therefore be applied to any type of column for which missing data is allowed.