On Tue, 08 Apr 2014 15:53:48 -0600
CS_DBA <cs_...@consistentstate.com> wrote:
> Not sure yet (new client)... for now they simply want to force the 
> template column to be a valid cust_id, if it is not null...

It seems to be a different version of the textbook exercice involving
EMPLOYEE_ID and MANAGER_ID.

-- 
Alberto Cabello Sánchez
<albe...@unex.es>


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