Question

What must be done before using Sqoop to import from a relational database?

A) Create a Hive table
B) Install the Sqoop plugin
C) Define the target directory in HDFS
D) Set up a connection and grant necessary permissions

Answer 1

D)set up a connection and grant necessary permissions, Before using Sqoop to import data from a relational database, you need to install the Sqoop plugin, and define the target directory in HDFS.

Step-by-step explanation:

Before using Sqoop to import data from a relational database, there are certain steps that need to be taken:

1. Set up a connection and grant necessary permissions: Sqoop requires a connection to the source relational database. This involves providing the necessary credentials and permissions to access the database.
2. Install the Sqoop plugin: Sqoop needs to be installed and configured on the machine where the data transfer will occur. This ensures that Sqoop has the necessary functionality to interact with the database.
3. Define the target directory in HDFS: Sqoop imports data from the relational database and stores it in HDFS. Before importing, you need to define the target directory in HDFS where the imported data will be stored.

After completing these steps, you can then use Sqoop to import data from the relational database.