Sqoop Where Clause

Apache Sqoop where 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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Sqoop Where

You can place restrictions on data imported by using "where" clause. Let's import cityByCountry table where state ( 6th column is restricted to "Alaska").

The Sqoop statement is written below

sqoop import \ --connect "jdbc:mysql://localhost/training" \ --username training -P \ --table cityByCountry \ --target-dir /user/where_clause \ --where "state = 'Alaska'" \ -m 1

Output is shown below

Let's list all databases present on a mysql server using a "list-databases" tool.

Note : for more information on list-databases, type "$ sqoop help list-databases".

$ sqoop list-databases --connect "jdbc:mysql://localhost" --username cloudera --password cloudera

Similarly for listing tables

$ sqoop list-tables --connect "jdbc:mysql://localhost/training" --username cloudera -P

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