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What is the advantages of Nulls

 
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anil_koneti

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Joined: 21 Apr 2005
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PostPosted: Thu May 12, 2005 7:41 pm    Post subject: What is the advantages of Nulls
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hi friends,
please give the answer for my question

What is the advantages of Nulls
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narasimharao_koganti

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Joined: 26 Apr 2005
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Location: pune

PostPosted: Thu May 12, 2005 9:06 pm    Post subject:
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hi,
null indicates the absence of date in the column of the table. If u specify while declaring the table as "not null", means no null values will be allowed in the table,and it will take default values.
The main advantage of the null is to identify whether the column contains any value or not.
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