CREATE TABLE [source_data] (
  [Unix_time] varchar( 15 ) [color=red]CONSTRAINT [UNIQ_UNIX] UNIQUE ON CONFLICT REPLACE[/color] DEFAULT ( 0 ), 
  [Local_time_event] DATETEXT( 20 ) DEFAULT ('12.12.2011 12:22:22'), 
  [Lat] varchar( 15 ) DEFAULT ( 0 ))

create or replace trigger 353976014422137_21.UNIQ_UNIX update of UNIX_TIME on SOURCE_DATA
	before insert on SOURCE_DATA for each row
BEGIN
	update SOURCE_DATA set = new.UNIX_TIME where UNIX_TIME=old.UNIX_TIME
END;