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Posted by David Portas on 11/15/05 19:33
1. You certainly ought to do this set-based rather than row by row as
your code fragment implied. What you can also do is batch the UPDATEs
into X rows at a time. For example:
SET ROWCOUNT 50000
WHILE 1=1
BEGIN
UPDATE dataTable
SET fieldE = 'fieldE_valueF'
WHERE EXISTS
(SELECT *
FROM dataTable AS T
WHERE fieldA = 'fieldA_valueB'
AND T.fieldC = dataTable.fieldC
AND T.fieldD = dataTable.fieldD);
IF @@ROWCOUNT = 0 BREAK
END
SET ROWCOUNT 0
2. Why would you want to do audit logging in the front end? I don't
understand the question.
3. What is your reason for wanting dynamic code rather than static?
This just comes down to change management controls. Dynamically
altering fundamental chunks of business logic without a release and
test cycle is a great recipe for really screwing things up. Would you
consider doing the same thing for C# code? I don't think so.
--
David Portas
SQL Server MVP
--
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