在Hive中,INSERT OVERWRITE语句用于将查询结果插入到指定的表中,并覆盖表中原有的数据。这意味着,执行INSERT OVERWRITE后,表中原有的数据将被新插入的数据替换。 sql INSERT OVERWRITE TABLE table_name SELECT ...; 2. 描述WITH子句在Hive中的用途 WITH子句(也称为公用表表达式CTE,Common Table Expressions)在Hi...
无:数据从hdfs上的相应路径path中移动数据到表tblName下,相当于hadoop fs -mv hdfs_uri_1 hdfs_uri_2 overwrite: 有:覆盖原来的数据,只保留新上传的数据。 无:在原来的目录下,在增加一个数据文件。 partition: 有:增加到相应的分区中 无:该表不是分区表 2°、从其他表中装载 insert <into|overwrite> tabl...
WHERE dt_year= '${v_dt_year}') a lateral view datemap(date_format(work_start_time, 'yyyy-MM-dd HH:mm:ss'), date_format(work_end_time, 'yyyy-MM-dd HH:mm:ss')) t as begin_date, end_date where a.rn= 1) insert overwrite table ${target_table} partition(dt_year='${v_dt_...
insert overwrite table b select *; -- ctas example (with 搭配 create table as select 建表语法) create table b as with a1 as (select id,name from a where id between 1 and 20) select * from a1; -- view example create view v1 as with a1 as (select id,name from a where id betw...
insert overwrite table ${target_table} partition(dt_year='${v_dt_year}')SELECT date_format(dwt.work_start_time, 'yyyyMMdd') AS work_start_date,date_format(dwt.work_end_time, 'yyyyMMdd') AS work_end_date,df.provider_no,df.supplier_no,dwt.driver_no,df.driver_name,df.telephone,dwt....
--with as ... insert into 语法withxxas(select.. ) , yyas(select.. )insert[overwrite]intotb_rstselectfromxxleftjoinyyonxx.id=yy.id --ddd基础信息维表,最新, dim.dim_dddALTERTABLEdim.dim_dddSETTBLPROPERTIES('EXTERNAL'='False');descformatted dim.dim_ddd;DROPTABLEIFEXISTSdim.dim_ddd;CREAT...
4、insert overwrite 报错 报错:Caused by: MetaException(message:Exception thrown when executing query : SELECT DISTINCT 'org.apache.hadoop.hive.metastore.model.MPartition' ASNUCLEUS_TYPE,A0.CREATE_TIME,A0.LAST_ACCESS_TIME,A0.PART_NAME,A0.PART_IDFROMPARTITIONSA0LEFT OUTER JOINTBLSB0ONA0.TBL_ID...
hive> insert overwrite local directory "/tmp/out/"> select user, login_time from user_login; 上⾯的命令会将select user, login_time from user_login的查询结果保存到/tmp/out/本地⽬录下。我们查看⼀下/tmp/out/⽬录下的⽂件，发现命令执⾏后，多了两个⽂件：$ find /tmp/out/ -...
1.使用insert …overwrite…directory方式导出数据到本地或者分布式文件系统上 标准语法格式:INSERT OVERWRITE [LOCAL] DIRECTORY directory1[ROW FORMAT row_format] [STORED AS file_format] (Note: Only available starting with Hive 0.11.0)SELECT ... FROM ...多次多出语法格式:FROM from_statementINSERT OVERWR...
hive create table store as的五种数据类型: hive create的时候的一些基本配置: 分区字段不能和表中的字段重复 insert into 和insert overwrite的区别 hive中使用子查询必须将子查询的表进行表别名命名; select * from (select id,devid,job_time from tb_in_base) a; ...