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SQL PRIMARY KEY Constraint



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sql commands
how can we insert multiple rows in a single statement into oracle database 

Key Constraints
This little tutorial was very helpful. I was trying to create Foreign Keys using mysql innodb and i was having issues with the syntax. I think I just discovered the problem. 

SQL PRIMARY KEY Constraint
NOT is missing in this article, which can make the entire aticle meaning less. It should contain NULL values. I guess in the above sentence NOT word is missing.As far as my knowledge is concerned primary key can not contain NULL values. 

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