Hive show

 CREATE TABLE page_view(viewTime INT, userid BIGINT,p_date timestamp,
     page_url STRING, referrer_url varchar(200),
     ip STRING COMMENT 'IP Address of the User')
 COMMENT 'This is the page view table'
 PARTITIONED BY(dt STRING, country STRING)
 STORED AS SEQUENCEFILE
 TBLPROPERTIES ('creator'='wx','date'='2015-07-18');

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

CREATE TABLE user_info_bucketed(user_id BIGINT, firstname STRING, lastname STRING)
COMMENT 'A bucketed copy of user_info'
PARTITIONED BY(ds STRING)
CLUSTERED BY(user_id) SORTED BY(firstname) INTO 3 BUCKETS;

Show Databases

hive> show databases;
default
test
hive> SHOW DATABASES LIKE  'te*';
test
hive> SHOW DATABASES LIKE  'te*|de*';
default
test 

Show Tables

hive> SHOW TABLES;
students
user_info_bucketed
hive> SHOW TABLES IN test;
students
user_info_bucketed
hive> use test;
hive> SHOW TABLES 'user*';
user_info_bucketed
hive> SHOW TABLES 'user*|stu*';
students
user_info_bucketed 

Show Partitions

hive> SHOW PARTITIONS user_info_bucketed;
ds=2015-07-20
ds=2015-07-25
ds=2015-07-30
hive> SHOW PARTITIONS user_info_bucketed PARTITION(ds='2015-07-25');
ds=2015-07-25
hive> SHOW PARTITIONS test.user_info_bucketed PARTITION(ds='2015-07-25');
ds=2015-07-25
hive> SHOW TABLE EXTENDED in test LIKE 'user_info_bucketed' PARTITION(ds='2015-07-20');
tableName:user_info_bucketed
owner:wx
location:hdfs://ns1/user/hive/warehouse/test.db/user_info_bucketed/ds=2015-07-20
inputformat:org.apache.hadoop.mapred.TextInputFormat
outputformat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
columns:struct columns { i64 user_id, string firstname, string lastname}
partitioned:true
partitionColumns:struct partition_columns { string ds}
totalNumberFiles:3
totalFileSize:72
maxFileSize:36
minFileSize:14
lastAccessTime:1437793073583
lastUpdateTime:1437823862864

Show Table Properties

hive> SHOW TBLPROPERTIES page_view;
comment This is the page view table
creator wx
date    2015-07-18
transient_lastDdlTime   1437825559
hive> SHOW TBLPROPERTIES page_view("creator");
wx 

Show Create Table

hive> SHOW CREATE TABLE page_view;

CREATE TABLE `page_view`(

  `viewtime` int,

  `userid` bigint,

  `p_date` timestamp,

  `page_url` string,

  `referrer_url` varchar(200),

  `ip` string COMMENT 'IP Address of the User')

COMMENT 'This is the page view table'

PARTITIONED BY (

  `dt` string,

  `country` string)

ROW FORMAT SERDE

  'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'

STORED AS INPUTFORMAT

  'org.apache.hadoop.mapred.SequenceFileInputFormat'

OUTPUTFORMAT

  'org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat'

LOCATION

  'hdfs://ns1/user/hive/warehouse/test.db/page_view'

TBLPROPERTIES (

  'creator'='wx',

  'date'='2015-07-18',

  'transient_lastDdlTime'='1437825559')

hive> SHOW CREATE TABLE user_info_bucketed;

CREATE TABLE `user_info_bucketed`(

  `user_id` bigint,

  `firstname` string,

  `lastname` string)

COMMENT 'A bucketed copy of user_info'

PARTITIONED BY (

  `ds` string)

CLUSTERED BY (

  user_id)

SORTED BY (

  firstname ASC)

INTO 3 BUCKETS

ROW FORMAT SERDE

  'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'

STORED AS INPUTFORMAT

  'org.apache.hadoop.mapred.TextInputFormat'

OUTPUTFORMAT

  'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'

LOCATION

  'hdfs://ns1/user/hive/warehouse/test.db/user_info_bucketed'

TBLPROPERTIES (

  'transient_lastDdlTime'='1437793010')

hive> SHOW CREATE TABLE test.students;

CREATE TABLE `test.students`(

  `name` varchar(64),

  `age` int,

  `gpa` decimal(3,2))

CLUSTERED BY (

  age)

INTO 2 BUCKETS

ROW FORMAT SERDE

  'org.apache.hadoop.hive.serde2.columnar.LazyBinaryColumnarSerDe'

STORED AS INPUTFORMAT

  'org.apache.hadoop.hive.ql.io.RCFileInputFormat'

OUTPUTFORMAT

  'org.apache.hadoop.hive.ql.io.RCFileOutputFormat'

LOCATION

  'hdfs://ns1/user/hive/warehouse/test.db/students'

TBLPROPERTIES (

  'transient_lastDdlTime'='1437793374')

Show Indexes

hive> SHOW INDEXES ON user_info_bucketed;

inx_1                   user_info_bucketed      user_id                 test__user_info_bucketed_inx_1__        compact                 index-my!!!!       

hive> SHOW FORMATTED INDEXES ON user_info_bucketed;

idx_name                tab_name                col_names               idx_tab_name            　　　　　　　　idx_type                comment 

inx_1                   user_info_bucketed      user_id                 test__user_info_bucketed_inx_1__        compact                 index-my!!!!       

hive> SHOW FORMATTED INDEXES ON user_info_bucketed IN test;

inx_1                   user_info_bucketed      user_id                 test__user_info_bucketed_inx_1__        compact                 index-my!!!!

Show Columns

hive> SHOW COLUMNS IN page_view;

viewtime           

userid             

p_date             

page_url           

referrer_url       

ip                 

dt                 

country            

hive> SHOW COLUMNS IN page_view in test;

viewtime           

userid             

p_date             

page_url           

referrer_url       

ip                 

dt                 

country

Show Functions

hive> SHOW FUNCTIONS;

hive> SHOW FUNCTIONS "a.*";

SHOW FUNCTIONS is deprecated, please use SHOW FUNCTIONS LIKE instead.

abs

acos

add_months

and

array

array_contains

ascii

asin

assert_true

atan

avg

hive> SHOW FUNCTIONS LIKE "a*";

abs

acos

add_months

and

array

array_contains

ascii

asin

assert_true

atan

avg

hive> SHOW FUNCTIONS LIKE "*a*";

Show Conf

Note that SHOW CONF does not show the current value of a configuration property. 

hive> SHOW CONF 'hive.exec.parallel';
false   BOOLEAN Whether to execute jobs in parallel