fitting a GUID field into a smaller field without losing uniqueness -

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i need send guid pk field (length = 36) downstream system accept 20-char long. cost-prohibitive increase length of field in downstream system. if truncate field lose uniqueness.

any way stuff 36 characters long guid varchar(20) field without losing uniqueness?

thank kathy

since varchar(20) 20 bytes , guid 16, should able fit in ascii85-encoding binary guid.


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