Sqoop Export from HDFS to database. Update only specified columns

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This topic contains 1 reply, has 2 voices, and was last updated by  Mahesh Balakrishnan 8 months, 2 weeks ago.

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  • #56268

    Prithvi Y
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    For example I have a file which consists of primary key and a column values which I have to update in a table where it has other columns too. My question is, can we update that particular column without updating those other columns in table? We must specify all the columns for –update-key argument right? is there any solution or work around for this?

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  • #60028

    Hi Prithvi,

    Yes, you would need to use update-key argument to check which columns to be checked before updating the records. For specific columns in the tables, if the file does contain exact columns for updating those specific columns in table then using the –column option would be beneficial.

    -Mahesh

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