Exhibition Buyer Data, B2B3.com

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What is Null? - Definition from Techopedia

What is Null? - Definition from Techopedia Dec 12, 2017 · Null, in a database context, is the total absence of a value in a certain field and means that the field value is unknown. Null is not the same as a zero value for a … Dec 12, 2017 · Null, in a database context, is the total absence of a value in a certain field and means that the field value is unknown. Null is not the same as a zero value for a …

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