title: How to handle duplicate records when importing data from RDMS to hadoop using sqoop?
body: <p>Suppose if we use incremental import in sqoop for importing data from RDMS to Hadoop and some data that we already imported in hadoop earlier got updated in RDMS and when we are again importing using sqoop incremental import we also get that recently updated data which was already present in our Hadoop which leads to data duplicates, so how can we avoid data duplicates when importing data using sqoop in such scenarios?</p>