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Normal operation, my table could run a trigger function when insert data.

but I found program shown "exception Lost Connection During Query " when no operate few minutes.

I changed setting as below to prevent error
TCustomDAConnection.Options.LocalFailover = True
TCustomDAConnection.Options.DisconnectedMode = True
TUNiquery.CachedUpdates = True
TUNiquery.specificoption.FetchAll = True
TUNiquery.Options.LocalMasterDetail = True

After above setting, the table can't run trigger function when insert data.
Any idea ?

Hi, why do you set DisconnectedMode to True?

We could not reproduce the problem. Please send to support*devart*com a complete small sample that demonstrates the problem, including the script for creating database objects.