想在sqoop export從hive抽取數據到關係型數據庫前先操作關係型數據庫,把目標表的數據清除一下,可以使用sqoop eval參數:
sqoop eval --connect jdbc:oracle:thin:@10.1.4.10:1521:ORCL\
--username USER\
--password pass \
--query "truncate table TABLE_NAME
sqoop export --connect jdbc:oracle:thin:@10.1.4.10:1521:ORCL\
--username USER\
--password pass \
--table TABLE_NAME\
--fields-terminated-by '\001' \
--input-null-string '\\N' \
--input-null-non-string '\\N' \
--export-dir /user/hive/warehouse/dc_prip.db/table_name -m 1