How to create hive Partition Table

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HIVE organizes tables into "partitions", which is a mechanism for roughly dividing tables according to the values of "partition columns". Using partitions can speed up the query of data fragments.

Tables or partitions can be further divided into buckets. It provides an additional structure for the data for more efficient query processing.

Create a partition table

CREATE TABLE bills_detail (msgid STRING,time STRING,spid STRING,opid STRING,spcode STRING,result STRING) PARTITIONED BY (dt STRING,type STRING) ROW FORMAT DELIMITEDFIELDS TERMINATED BY'\ t'

Table structure

Hive > desc bills_detail OKmsgid string time string spid string opid string spcode String result string dt string type string # Partition Information # col_name data_type comment dt string type string

two。 Import data

Load data local inpath'/ home/hive/201601notify.txt' into table bills_detail partition (dt='201601',type='notifySmsDeliveryReceipt'); load data local inpath'/ home/hive/201601sendsms.txt' into table bills_detail partition (dt='201601',type='sendSms')

Actual path of data in hive:

/ apps/hive/warehouse/bills_detail/dt=201601/type=sendSms/201601sendsms.txt

3. Query data

Hive > select * from bills_detail where dt='201601' and type='sendSms' limit 10

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