1.第⼀种⽅法 当存储路径与表所在路径不⼀致时,可以load进去,如果表中字段类型不对应,该字段的值将会为空load data inpath 'hdfs://hadoop01:9000/tmp/sales_info.txt' overwrite into table sales_info partition(dt = '20191215');
2.当存储路径与表所在路径⼀致时,可以采⽤添加分区的⽅式
alter table ods_nshop.ods_01_releasedatas add partition (bdp_day='20191215') location'hdfs://hadoop01:9000/data/nshop/ods/release/bdp_day=20191215'hive的表如下:
create external table if not exists ods_nshop.ods_01_releasedatas( customer_id string comment '⽤户id', device_num string comment '设备号', device_type string comment '设备类型', os string comment '⼿机系统',
os_version string comment '⼿机系统版本', manufacturer string comment '⼿机制造商', area_code string comment '地区编码', release_sid string comment '投放请求id',
release_session string comment '投放会话id', release_sources string comment '投放渠道', release_params string comment '投放请求参数', ct bigint comment '创建时间')
partitioned by (bdp_day string)ROW FORMAT DELIMITEDFIELDS TERMINATED BY ','stored as textfile
location '/data/nshop/ods/release/'
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