Two users modify the same field in the table,
Error want to show the second user to save data.

-) Using a TClientDataser and TDatasetProvider, no problem, works well.

-) TFDQuery component FireDAC the Embarcadero it has the property
Property: UpdateOpcions
UpdateMode:
upWhereAll
upWhereChanged
upWhereKeyOnly

Implementing this property in TIBCQuery
solve my problem of concurrency.

thanks