1、建立新表

create table student_hive (name string, sex string ,age int) row format delimited fields terminated by '\t';

2、匯入資料student_hive.txt到student_hive表

load data local '/home/hairui/student_hive.txt' overwrite into table student_hive;

3、正則匹配表明

show tables 'student';

4、增加一個欄位

alter table student_hive add columns (new score int);

5、重命令表名

alter table student_hive rename to student_hivehive;

6、從HDFS載入資料

load data inpath '/home/hairui/warehouse/student/student_hive.txt' overwrite into table student_hivehive;

7、從其他表匯入資料

insert overwrite table student_hive select * from student;

8、建立表並從其他表匯入資料

create table student_hive as select *from student;

9、僅複製表結構不匯入資料

create table student_hive like student;

10、通過hive匯出到本地檔案系統

insert overwrite local directory '/tmp/student_hive' select * from student;

11、hive查詢HiveQL

from (select name,sex as sex from student_hive) student select student.name, student.sex;

select name,sex from hive limit 2;