How do I copy table data from one table to another in hive?

To achieve this, Hive provides the options to create the table with or without data from the another table.

1. Copy the data from one table to another table in Hive.
2. Example : Create Table as Select in Hive.
3. Copy the table structure in Hive.
4. Example : Create the new table from another table without data.

How do I copy a table in hive?

Syntax is : create table [new-table-name] like [old-table-name];

1. Create a new table called employee in Hive using this article.
2. Check the schema of Hive tables employee using describe command.
3. Create a new table called employee_india with same column names and data types of employee table.

How do I copy hive data from one cluster to another?

Article Details

1. Install Hive on the new cluster and make sure both the source and destination clusters are identical.
2. Transfer the data present in the Hive warehouse directory (/user/hive/warehouse) to the new Hadoop cluster.
3. Take a backup of the Hive Metastore.
4. Install MySQL on the new Hadoop cluster.

How do I load data into a partitioned Hive table?

Hive LOAD File from HDFS into Partitioned Table

1. Create another table without partition.
2. Load data into the table (Assume state is at first column).
3. Insert into the partitioned table by selecting columns from the non-partitioned table (make sure you select state at the end).

What was Hadoop written in?

Java
Apache Hadoop/Programming languages
Explanation: The Hadoop framework itself is mostly written in the Java programming language, with some native code in C and command-line utilities written as shell scripts. 7.

How do I copy a table with partition in hive?

INSERT OVERWRITE TABLE my_table_backup PARTITION (ds) SELECT * FROM my_table WHERE ds = ds; The where clause is needed if you use strict mode. It is mandatory to use partitioned column as last column while inserting the data. Hive will take the data which is there in last column.

How do I move hive from one location to another?

To alter the location of a table, you can run ALTER TABLE

SET LOCATION “/path/to/new/location”

How copy data from one environment to another environment in Hadoop?

Usage:

1. copy one file to another. \% hadoop distcp file1 file2.
2. copy directories from one location to another. \% hadoop distcp dir1 dir2.