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You CAN create an index with a WHERE clause. IBM specifically made this
to eliminate 99% of the arguments people had against SQL.
Sample:
Vendor creates table (let's call it IIM for an item master table). Vendor
puts no key on the table. Table has an active record column (IID). Vendor
creates a logical file in DDS like this
R IPI100IM PFILE(IIM )
K IPROD
S IID COMP(EQ 'IM')
Of course the vendor is an a$$ who thinks their program logic will ensure
there are no duplicate keys and whatnot.
Several releases ago IBM came up with this in sql
create index rob.iiml01
on erplxf.iim (iprod)
where iid='IM'
rcdfmt IPI100IM add all columns
Rob Berendt
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