|Subject||Re: [IBO] Replicating blobs with triggers|
Helen Borrie wrote:
> At 05:48 AM 6/12/2006, you wrote:Helen and Alan, thanks for the heads up.
>> If you do this in the BEFORE INSERT, no blob ID is available. Blobs
>> are created with a temporary ID earmarked for association with the
>> blob ID that will be created for your blob field during the window
>> between BEFORE and AFTER events at the server.
>> Replacing this with an AFTER INSERT trigger has a better chance of
>> success. However, messing around with blobs in triggers requires you
>> to be very conservative in your operations. Try to engineer any kind
>> of DML operation involving a blob so that the record[s] concerned get
>> at most ONE hit in your transaction and are committed or rolled back
>> without delay.
>> For your future reference, knife-and-fork questions regarding how the
>> database engine works are off-topic in this list unless they have a
>> bearing on some issue you're encountering with IB Objects. Therefore,
>> if you are likely to have further non-IBO-related questions, please
>> post them in firebird-support (or the appropriate Borland newsgroup,
>> if you are using InterBase).