Sqoop Incremental Import

Question

Need advice on Sqoop Incremental Imports. Say I have a Customer with Policy 1 on Day 1 and I imported those records in HDFS on Day 1 and I see them in Part Files.
On Day 2,

Answer 1

In such use cases always look for fields which are genuinely incremental in nature for incremental append. and for last modified look best suited field is modified_date or likewise some fields for those which have been changed since you sqoop-ed them. only those and those rows will be updated, adding newer rows in your hdfs location requires incremental append.