tables

hive managed

create table t1 (id int);show tables;describe t1;show create table t1;describe extended t1;describe formated t1;quit;

create table t2 (id int)LOCATION '/user/home/t1';

external tablecreate external table t3 (id int)location '/user/home/exter';

drop table t1;

mysql -u rootshow databases;use hive;show tables;

LOAD DATA LOCAL INPATH 'sourcedata.txt' into table sourcetable;

create table t2 like t1;

LOAD DATA INPATH '/user/hive/warehouse/t1' into table t2; (move)

create table t2_seq (id int , name string)STORED AS SequenceFile;

insert into table t2_seq select * from t2;

create table t2_avro (id int , name string)STORED AS AVRO;

create table t2_orc (id int , name string)STORED AS ORC;

create table t2_parq (id int , name string)STORED AS PARQUET;

show tables;

insert overwrite directory 'user/sample/hive_out'select * from t1;

CREATE TABLE students (name VARCHAR(64), age INT, gpa DECIMAL(3, 2)) CLUSTERED BY (age) INTO 2 BUCKETS STORED AS ORC;

INSERT INTO TABLE students VALUES ('fred flintstone', 35, 1.28), ('barney rubble', 32, 2.32);

set -v;

set mapreduce.job.reduces=2; insert overwrite directory '/user/hive/h1' select year, name from eu distribute by year sort by year,name;

LOAD DATA INPATH 'hdfs_file_or_directory_path' [OVERWRITE] INTO TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)]

LOAD DATA LOCAL INPATH 'sourcedata.txt' into table sourcetable;

create table tabname like taboldname

create table tabname as select * from oldtab limit 5;

sed -i 's/"//g' your_file_name

create view medium_country as select * from world where name = "so and so"

create table cities_part (name string, population:int) partitioned by (state string)

insert into table cities_part PARTITIONED (state) select name, population, state from cities;

CREATE TABLE order ( username STRING, orderdate STRING, amount DOUBLE, tax DOUBLE,) PARTITIONED BY (company STRING)CLUSTERED BY (username) INTO 25 BUCKETS;

create external table s1 (id int ,score int)ROW FORMAT DELIMITED

FIELDS TERMINATED BY '\t' LOCATION '/test/s1';

create external table s1 (id int ,score int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'

LOCATION '/test/s1';