Update column names with value which is null val



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Update column names with value which is null val

Postby ragur.satheesh » Mon Dec 13, 2010 12:04 pm

I want to update the column name with valid value which is having null values?
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Re: Update column names with value which is null val

 

Re: Update column names with value which is null val

Postby NicC » Mon Dec 13, 2010 2:32 pm

There is no such thing as 'NULL VALUE'. If a column does not have a value a seperate byte is set to indicate there is no data. This is known as the NULL INDICATOR. YOu can put anything you want in a column as long as it conforms to the datatype of the column.
The problem I have is that people can explain things quickly but I can only comprehend slowly.
Regards
Nic
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