Problems with ALL and EXISTS when there are nulls

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Hi,

I want to share with you all some practical posts related to:

Problems with ALL and EXISTS, meanings of null in this site

www.dbtheoryinpractice.com

Thanks

[o***@hotmail.com]

Hi,

Something else, in www.dbtheoryinpractice.com all the queries has been run in DB2 version 7.x, so they are applicable to the newest versions.