Okay, for what it's worth, I modified the program today to use 
CIUPDATE.  I used the DBFIND-DBGET-DBUPDATE-Repeat DBGET until 
no more records logic.  I locked the entry by another item that 
was not being changed (so I had lock coverage both before and 
after the search item change).  The first test appears to work, 
that is, no records appears to be missing, and the search item 
that I was changing to zero was changed in all records that needed 
to be changed.  I plan on doing more testing tomorrow.

The actual logic is:

DBFIND_By_Search_Item_1

DBGET

DBLOCK_By_Search_Item_2

Set Search_Item_1 to zeroes

DBUPDATE

DBUNLOCK

Go_Back_To_DBGET_Until_End_Of_Chain

Jim Phillips                            Manager of Information Systems
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