sqoop export --connect jdbc:oracle:thin:@//<myserver>:<port>/<database> --username <myun> -P --table <schema>.<table> --export-dir <myhdfsdir> --input-fields-terminated-by ',' --lines-terminated-by 'n' --fields-terminated-by ','

My Hive Table   My Oracle Table
col_A STRING      col_A VARCHAR2
col_B INT         col_B NUMBER
col_C INT         col_C NUMBER
col_D STRING      col_D VARCHAR2
col_E STRING      col_E VARCHAR2
col_F STRING      col_F VARCHAR2
col_G STRING      col_G VARCHAR2
col_H INT         col_H NUMBER
col_I STRING      col_I VARCHAR2
col_J INT         col_J NUMBER
col_K STRING      col_K VARCHAR2
col_L STRING      col_L VARCHAR2