三、create table ... stored as ... as select createtablebidata.dep_category_parquet_1as storedasparquetas select*frombidata.dep_category_copywheredepartment>0; WARNING: Hive-on-MRisdeprecatedinHive 2andmaynotbe availableinthe future versions. Consider using a different execution engine (i.e. s...
1. 使用create table语句创建表 例子: createtableifnotexists`t_student`( idint, s_name string, s_ageint) partitionedby(date string) row format delimited fields terminatedby'\t'; 2. 使用create table ... as select...语句创建表 例子: createtablesub_studentasselect*fromt_student; 使用create ...
在Hive中,我们可以使用CREATE TABLE语句来创建表。该语句的基本语法如下: CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name [ ROW FORMAT row_format ] [ STORED AS file_format ] [LOCATION hdfs_table_path] [ AS select_statement]; 参数说明: EXTERNAL:表示外部表,即不存储在hive默认的数...
id int, name string ) row format delimited fields terminated by '\t' stored as textfile location '/user/hive/warehouse/student2'; 1. 2. 3. 4. 5. 6. (2)根据查询结果创建表(查询的结果会添加到新创建的表中) create table if not exists student3 as select id, name from student; (3)...
create table as select * from和insert into select from两种表复制语句区别 create table targer_table as select ... HIVE的常用操作(HQL)语句 HIVE基本操作命令 创建数据库 >create database db_name; >create database if not exists db_name;//创建一个不存在的数据 ... ...
create table if not exists stu2(id int ,name string) row format delimited fields terminated by '\t' stored as textfile location '/user/stu2'; 2. 根据查询结果创建表 代码语言:javascript 复制 create table stu3 as select * from stu2; 3. 根据已经存在的表结构创建表 代码语言:javascript 复制...
CREATETABLEIFNOTEXISTStablename1...ASSELECT... 如下面的例子: 注意:Hive表studentnotmp1不能指定列。 二、从Hive表中将数据导出 对于Hive表中的数据,有时需要将其导出,或是导出到本地,或是导出到HDFS,再其次便是将其导入到另一张Hive表中。
AS select_statement 使用來自 select 語句的數據填入 table。 範例 SQL複製 --Use hive formatCREATETABLEstudent (idINT,nameSTRING, ageINT)STOREDASORC;--Use data from another tableCREATETABLEstudent_copySTOREDASORCASSELECT*FROMstudent;--Specify table comment and propertiesCREATET...
CREATETABLE`employee`(`dept_no`int,`addr`string,`tel`string)partitionedby(statis_date string)ROWFORMAT DELIMITEDFIELDSTERMINATEDBY',' 详细参考上述建表说明。 可以使用describe formatted employee查看建表相关的各种配置属性以及默认属性。 3.2、 create table ...as select..(CTAS) ...
[AS select_statement]; -- (Note: Available in Hive 0.5.0 and later; not supported for external tables) CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name LIKE existing_table_or_view_name [LOCATION hdfs_path]; ...