ALTER TABLE table_name DROP [IF EXISTS] PARTITION (dt='2008-08-08', country='us'); --直接删除数据 不进垃圾桶 ALTER TABLE table_name DROP [IF EXISTS] PARTITION (dt='2008-08-08', country='us') PURGE; 1. 2. 3. 4. 2.4 重命名分区 一次重命名多个分区 ALTER TABLE table_name PARTITI...
1、给原表score加载数据(load) 2、创建第一部分、第二部分表(create table) 3、分别给第一部分和第二部分加载数据 from score insert overwrite table score_first partition(month='201806') select s_id,c_id insert overwrite table score_second partition(month = '201806') select c_id,s_score; 1. ...
hive>>frompartition_test_input>insertoverwritetablepartition_test partition (stat_date='20110526',province='liaoning')>selectmember_id,namewherestat_date='20110526'andprovince='liaoning'>insertoverwritetablepartition_test partition (stat_date='20110728',province='sichuan')>selectmember_id,namewherestat_d...
insert into 表名 partition (scenario_code) values ('1','2','3','CID'),('2','3','4','CID'); 三、知识点总结 1.刚开始我用create table as select 原表,想备份一下原表数据,在备份表进行insert into,发现这样创建新表没有分区,于是在原表上直接执行了insert into 2.分区表记得加上分区或分...
create tableorders_part(order_id string,user_id string,eval_set string,order_number string,order_hour_of_day string,days_since_prior_order string)partitionedby(order_dow string)row format delimited fields terminated by',';--添加数据 insert into table orders_partpartition(order_dow)select order_...
load data local inpath '/export/servers/hivedatas/score.csv' overwrite into table score partition(month='201806'); 通过查询方式加载数据 代码语言:javascript 复制 create table score4 like score; 代码语言:javascript 复制 insert overwrite table score4 partition(month = '201806') select s_id,c_id,...
insert into salary_dynamic_partition select * from default.salary;可以看到根据dept_id字段创建了三个分区：静态分区与动态分区混合使用 注意：需要注意的是，动态分区不能在静态分区前面，在select 中位置顺序出现在最后。创建表 create table static_mix(user_id int,prod_name string,apply_status string);alter...
PARTITIONED BY (`column1` string ,`column2` string)ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'LINES TERMINATED BY '\n'STORED AS orc;2.查看表结构 两种方式均可查看表结构：1.show create table table_name;2.desc table_name;3.重命名表名 语法：alter table old_table_name rename to new_...
INSERT (INTO | OVERWRITE) TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)] select_statement; 关键字说明: (1)INTO:将结果追加到目标表 (2)OVERWRITE:用结果覆盖原有数据 2)案例 (1)新建一张表 hive (default)> create table student1( id int, name string ) row format delimite...
insert into table test_partition1 partition(sku_class='xiaomi') values(1,'test_partition'); 指定分区查询分区表: select * from test_partition1 where sku_class='xiaomi'; 若需查询分区表的所有数据时,即不指定分区查询,需对hive作以下设置,否则hive会报错: ...