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From Dag.Wan...@Sun.COM (Dag H. Wanvik)
Subject Re: regarding unique keys in derby..
Date Wed, 25 Jul 2007 23:11:00 GMT
Ravinder Reddy Pandiri <pandiri@students.iiit.ac.in> writes:

>> You are easily shocked #:)
> 	I think most of the database systems(oracle , db2 , mySql ,
> postgreSQL et al) allow a unique key column to contain NULL values.
> That's why I am shocked..!!!!!

Cf DERBY-2212, which will address this missing feature.

Dag

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