Hopefully your CILS table is not too many rows...


select * from JOB, CILS as cyan, CILS as magenta

where cyan.num_of = JOB.num_of

  and magenta.num_of = cyan.num_of

  and cyan.color = 'cyan'

  and magenta.color = 'magenta'



or something not unlike that...



You may want UNIQUE JOB.id_enc or somesuch, because this will get TWO JOBs 
each, since one is cyan and one is magenta.



If any of these tables are "large" this could be an enormous number of temp 
records.



Do an "explain" on the query to see just what sort of pain you are looking at...



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