How to retain datatypes when importing data from Oracle to HDFS using sqoop?










0















We are using sqoop to import data from Oracle to HDFS.
In HDFS we are creating an avro file.



Issue we are facing is that, date is being converted to long and all other datatypes are being converted to string.
Is there any way to preserve the datatypes, when importing data using sqoop?



Thanks






hadoop hdfs sqoop







share|improve this question

















  • 1





    In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

    – marjun
    Nov 16 '18 at 9:45











  • Thanks.This was helpful.

    – Anuj Mehra
    Nov 21 '18 at 18:26











  • pls upvote if comment helpful

    – marjun
    Nov 22 '18 at 7:30















0















We are using sqoop to import data from Oracle to HDFS.
In HDFS we are creating an avro file.



Issue we are facing is that, date is being converted to long and all other datatypes are being converted to string.
Is there any way to preserve the datatypes, when importing data using sqoop?



Thanks






hadoop hdfs sqoop







share|improve this question

















  • 1





    In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

    – marjun
    Nov 16 '18 at 9:45











  • Thanks.This was helpful.

    – Anuj Mehra
    Nov 21 '18 at 18:26











  • pls upvote if comment helpful

    – marjun
    Nov 22 '18 at 7:30













0












0








0








We are using sqoop to import data from Oracle to HDFS.
In HDFS we are creating an avro file.



Issue we are facing is that, date is being converted to long and all other datatypes are being converted to string.
Is there any way to preserve the datatypes, when importing data using sqoop?



Thanks






hadoop hdfs sqoop







share|improve this question














We are using sqoop to import data from Oracle to HDFS.
In HDFS we are creating an avro file.



Issue we are facing is that, date is being converted to long and all other datatypes are being converted to string.
Is there any way to preserve the datatypes, when importing data using sqoop?



Thanks






hadoop hdfs sqoop




hadoop hdfs sqoop






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 14 '18 at 11:01









Anuj MehraAnuj Mehra

5010




5010







  • 1





    In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

    – marjun
    Nov 16 '18 at 9:45











  • Thanks.This was helpful.

    – Anuj Mehra
    Nov 21 '18 at 18:26











  • pls upvote if comment helpful

    – marjun
    Nov 22 '18 at 7:30












  • 1





    In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

    – marjun
    Nov 16 '18 at 9:45











  • Thanks.This was helpful.

    – Anuj Mehra
    Nov 21 '18 at 18:26











  • pls upvote if comment helpful

    – marjun
    Nov 22 '18 at 7:30







1




1





In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

– marjun
Nov 16 '18 at 9:45





In sqoop command use --map-column-java Col_Name=Data_Type,Col_Name=Data_Type and list all the columns which has to be cast.

– marjun
Nov 16 '18 at 9:45













Thanks.This was helpful.

– Anuj Mehra
Nov 21 '18 at 18:26





Thanks.This was helpful.

– Anuj Mehra
Nov 21 '18 at 18:26













pls upvote if comment helpful

– marjun
Nov 22 '18 at 7:30





pls upvote if comment helpful

– marjun
Nov 22 '18 at 7:30












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