Command to launch hive connecting to the specified database hive –database training_sqoop_retail Command to get the list of tables in database SHOW tables; Command to get meta-data on tables DESCRIBE orders; DESCRIBE order_items; Command to preview the data in tables SELECT * FROM orders LIMIT 10; SELECT * FROM order_items LIMIT 10; Command to count …
To display information and usage instructions related to export command sqoop help export Command to connect to my sql mysql -u retail_user -h ms.itversity.com -p Command to get list of databases show databases; Command to connect to a database USE retail_export; Command to create a table CREATE TABLE testing(i INT); Command to drop a table …
Command to import data into hive table with log files sqoop import –connect jdbc:mysql://ms.itversity.com:3306 –username retail_user –password itversity –table orders –hive-import –hive-database training_sqoop_retail –hive-overwrite –verbose 2>sqoopimport.err 1>sqoopimport.out Command to get list of files as specified Is -Itr sqoopimport.* To view file view sqoopimport.err Command to import data into hive table with log files without using …
202.Sqoop Import – Understanding Execution Flow while importing into Hive Table Read More »
Command to import table into hive and give error if table already exists sqoop import –connect jdbc:mysql://ms.itversity.com:3306/retail_db –username retail_user –password itversity –table orders –hive-import –hive-database training_sqoop_retail –create-hive-table To validate files in directory hadoop fs -Is /user/training/orders Command to remove files in directory hadoop fs -rm -R /user/training/orders Command to import data into hive sqoop import …
201.Sqoop Import – Managing Table using Hive Import – Error out – create-hive-table Read More »
Command to overwrite the data imported if exists sqoop import –connect jdbc:mysql://ms.itversity.com:3306/retail_db –username retail_user –password itversity –table orders –hive-import –hive-database training_sqoop_retail –hive-overwrite
Command to import table to hive database sqoop import –connect jdbc:mysql://ms.itversity.com:3306/retail_db –username retail_user –password itversity –table orders –hive-import –hive-database training_sqoop_retail
