Null Values Treatment in Distributed Databases
There has been a great deal of discussion about null values in relational databases. The relational model was defined in 1969, and Nulls Was died in 1979. Unfortunately, there is not a generally agreeable solution for rull values problem. Null is a special marker which stands for a value undefined o...
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| Format: | Article |
| Language: | Arabic |
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University of Information Technology and Communications
2002-12-01
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| Series: | Iraqi Journal for Computers and Informatics |
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| Online Access: | http://ijci.uoitc.edu.iq/index.php/ijci/article/view/226 |