|
I don't think this is easy enough to make it worthwile with sql, but,
maybe.....
Here's my client file that I want to update :
ClientId ClientName ClientVersion
15 Bigs 0
I receive a file containing clientId and the new name of the client, eg,
clientId 15 becomes 'Smith'. But I can't just update the client file from
this work file. I need to archive the original name, so I have this kind of
representation after the update :
ClientId ClientName ClientVersion
15 Smith 0
15 Bigs 1
There's a timestamp field among the other fields. Version 0 is always
updated to n+1 and a new line is written to the file. So, in the example,
I've updated the line Bigs and I've written the line Smith.
So, version 0 is the current version and 1 is the old one. If I change now
to 'Eggs', I want to see :
ClientId ClientName ClientVersion
15 Eggs 0
15 Bigs 1
15 Smith 2
I ask because I get this request now and again, for a few thousand clients
at a time. I'm having to use an RPG to write to the client file, but I
always end up using SQL to prepare a work file for that RPG.
Thanks.
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