SQLAlchemy ON DUPLICATE KEY UPDATE

Question

Is there an elegant way to do an INSERT ... ON DUPLICATE KEY UPDATE in SQLAlchemy? I mean something with a syntax similar to inserter.insert().execute(lis

Answer 1

It's depends upon you. If you want to replace then pass OR REPLACE in prefixes

  def bulk_insert(self,objects,table):
    #table: Your table class and objects are list of dictionary [{col1:val1, col2:vale}] 
    for counter,row in enumerate(objects):
        inserter = table.__table__.insert(prefixes=['OR IGNORE'], values=row)
        try:
            self.db.execute(inserter)
        except Exception as E:
            print E
        if counter % 100 == 0:
            self.db.commit()                    
    self.db.commit()

Here commit interval can be changed to speed up or speed down