指定分隔符為逗號
create table student(id string,birthday string,grade int,m1 int,m2 int,m3 int,m4 int,memo string)
row format delimited
fields terminated by ',';
create external table student(id string,birthday string,grade int,m1 int,m2 int,m3 int,m4 int,memo string)
row format delimited
fields terminated by ','
location '/usr/data';
create external table student(id string,birthday string,grade int,m1 int,m2 int,m3 int,m4 int,memo string)
row format delimited
fields terminated by ','
location '/usr/data'
partitioned by(day string);
load data local inpath '/root/../../' into table tablemame partition(partition_name);load data inpath '/root/../../' into table tablemame partition(partition_name);select count(1) from table_name where partition_name='';建表語法：建乙個和已經存在的表結構相同的表
create table new_table_name like exit_table_name;create table new_table_name as select * from table_name where ip>'192.168.156.8';create table student(id string,actor array,grade int)
row format delimited
fields terminated by ','
collection items terminated by ':';
//資料
1，王，li:zhang:liu，22
select id actor,grade
from student
where array(actor,'li'); //查詢』li'
create table student(id string,family_num map,grade int)
row format delimited
fields terminated by ','
collection items terminated by '#'//每個k-v怎麼切
map keys terminated by ':'; // key和value怎麼切
select id family['sister'],grade
from student
//查詢
select cast("8" as int)
用一張表查詢的資料建立另一張表
create table table_name
asselect *
from table;
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