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How to List the Database in Sqoop?
- Sqoop list-databases tool parses and executes the ‘SHOW DATABASES’ query against the database server.
- Thereafter, it lists out the present databases on the server.
Purpose
List database schemas present on a server.
Common arguments
| Argument | Description |
|---|---|
| --connect <jdbc-uri> | Specify JDBC connect string |
| --connect-manager <jdbc-uri> | Specify connection manager class to use |
| --driver <class-name> | Manually specify JDBC driver class to use |
| --hadoop-home <dir> | Override $HADOOP_HOME |
| --help | Print usage instructions |
| -P | Read password from console |
| --password <password> | Set authentication password |
| --username <username> | Set authentication username |
| --verbose | Print more information while working |
| --connection-param-file <filename> | Optional properties file that provides connection parameters |
Syntax
$ sqoop list-databases (generic-args) (list-databases-args)
$ sqoop-list-databases (generic-args) (list-databases-args)
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Sample Query
The following command is used to list all the databases in the MySQL database server.
$ sqoop list-databases \
--connect jdbc:mysql://localhost/ \
--username root
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Output
If the command executes successfully, then it will display the list of databases in your MySQL database server as follows.
...
13/05/31 16:45:58 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
mysql
test
userdb
db