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What is the difference between an "empty" value and a "null" value in oracle?

Posted By: Dhivakaran     Posted Date: October 29, 2010    Points:2   Category :Sql Server
What is the difference between an "empty" value and a "null" value in oracle?

Author: Sajid P K             
Posted Date: October 29, 2010     Points: 5   

Dhivakaran .

Going by the SQL standard the difference is very significant,NULL means no-value
Since NULL is a big void it cannot be really compared to any other value, including an empty string,
About the only way to capture the NULL is to say



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