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What is Sqoop

What is Sqoop for beginners and professionals with examples on sqoop, Sqoop features, Sqoop Installation, Starting Sqoop, Sqoop Import, Sqoop where clause, Sqoop Export, Sqoop Integration with Hadoop ecosystem etc.

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What is Sqoop

Sqoop is a command-line interface application for transferring data between relational databases and Hadoop.

It supports incremental loads of a single table or a free form SQL query as well as saved jobs which can be run multiple times to import updates made to a database since the last import.Using Sqoop, Data can be moved into HDFS/hive/hbase from MySQL/ PostgreSQL/Oracle/SQL Server/DB2 and vise versa.

Sqoop

Sqoop Working

Step 1: Sqoop send the request to Relational DB to send the return the metadata informationabout the table(Metadata here is the data about the table in relational DB).

Step 2: From the received information it will generate the java classes (Reason why you shouldhave Java configured before get it working-Sqoop internally uses JDBC API to generate data).

Step 3: Now Sqoop (As its written in java ?tries to package the compiled classes to beable togenerate table structure) , post compiling creates jar file(Java packaging standard).

Next TopicSqoop Installation




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