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Thread: Is there a better way to write UPDATE Batch query

Veronka Capone
Posts: 113

Is there a better way to write UPDATE Batch query Your last visit to this thread was on 1/1/1970 12:00:00 AM

Posted: 17 Feb 09 10:48 AM

I need to update 2 fields on ESI_Equipment. Right now my query looks like this:

UPDATE ESI_Equipment
SET Renewal_Type = (SELECT
CASE WHEN IsPrintSuccess = 1 THEN 'Print' ELSE '' END +
CASE WHEN IsEmailSuccess = 1 THEN ', Email' ELSE '' END +
CASE WHEN IsFaxSuccess = 1 THEN ', Fax' ELSE '' END +
CASE WHEN IsEdit = 1 THEN ', Custom' ELSE '' END
FROM tbl_ProcessContractHistory ph
WHERE ESI_Equipment.ESI_EquipmentID = ph.EquipmentID AND BatchID = 'SLX_000001'),
Renewal_Sent = (SELECT DateProcessCompleted
FROM tbl_ProcessContractHistory ph2
WHERE ESI_Equipment.ESI_EquipmentID = ph2.EquipmentID AND BatchID = 'SLX_000001')
WHERE EXISTS (SELECT *
FROM tbl_ProcessContractHistory ph
WHERE ph.EquipmentID = ESI_Equipment.ESI_EquipmentID)

Is there a better way? (It seems odd to write 1 subquery for each field).

Thanks.

[Reply][Quote]

Phil Parkin
Posts: 819

Re: Is there a better way to write UPDATE Batch query Your last visit to this thread was on 1/1/1970 12:00:00 AM

Posted: 17 Feb 09 11:13 PM

There's some fairly complex business logic in there and, to me, the query looks as good as it can be.

I do not expect that this would run through the SLX provider though - are you running in a zero-sync environment?

Phil

[Reply][Quote]

Veronka Capone
Posts: 113

Re: Is there a better way to write UPDATE Batch query Your last visit to this thread was on 1/1/1970 12:00:00 AM

Posted: 18 Feb 09 7:44 AM

It's running in a .NET app through SLX provider. It works also in SLX Admin Query, and yes, I am not concerned about remotes.

Thanks!

[Reply][Quote]

Phil Parkin
Posts: 819

Re: Is there a better way to write UPDATE Batch query Your last visit to this thread was on 1/1/1970 12:00:00 AM

Posted: 18 Feb 09 10:03 AM

My expectation was clearly wrong on this occasion

[Reply][Quote]

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