Re: Migrating ISAM to Relational Database


"Alistair" <alistair@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1176905892.231022.224940@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[snip]
So definitely end of argument. ODO is a cpu hog.

No, not at all! The performance cost of ODO depends
on how it is used, not ODO itself.

ODOSLIDE is particular to implementations and is
non-standard. Comparing the value of an index-name
to a numeric value may be expensive; but comparing
the values of two index-names is not. Don't do these
two things and using ODO is only a few percent
slower than using fixed tables, for the operations
tested. For other operations, it may be faster.



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