Databases
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    <p>You can use "SqoopOptions" for executing sqoop in your Java Program.</p> <p>This is a sample code for importing a table in MySql to HDFS.</p> <pre><code>public static void importSQLToHDFS() throws Exception { String driver = "com.mysql.jdbc.Driver"; Class.forName(driver).newInstance(); Configuration config = new Configuration(); config.addResource(new Path("/.../conf/core-site.xml")); config.addResource(new Path("/.../conf/hdfs-site.xml")); properties.load(new FileInputStream("/.../sqoopimport.properties")); SqoopOptions options = new SqoopOptions(); options.setDriverClassName(driver); options.setHadoopHome("/.../hadoop-0.20.2-cdh3u2"); options.setConnectString(properties.getProperty("db_connection_string")); options.setTableName(properties.getProperty("db_mysql_table_name")); options.setUsername(properties.getProperty("db_usr_id")); options.setPassword(properties.getProperty("db_passwd")); options.setNumMappers(1); options.setTargetDir(properties.getProperty("path_export_file")); options.setFileLayout(FileLayout.TextFile); new ImportTool().run(options); } </code></pre> <p>For Exporting see sample code below. Note: Here property file is not used. Make sure you have created the table to which the data is to be imported.</p> <pre><code>public static boolean exportHDFSToSQL() throws InstantiationException, IllegalAccessException, ClassNotFoundException { try { SqoopOptions options=new SqoopOptions(); options.setConnectString("jdbc:mysql://localhost:3306/dbName"); options.setUsername("user_name"); options.setPassword("pwd"); options.setExportDir("path of file to be exported from hdfs"); options.setTableName("table_name"); options.setInputFieldsTerminatedBy(','); options.setNumMappers(1); new ExportTool().run(options); } catch (Exception e) { return false; } return true; } </code></pre>
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    1. POHow can I execute Sqoop in Java?
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    1. USJickson T George
    1. USJickson T George
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    1. COThanks for your help. But What is 'properties'? Do i make it? and I don't know about "/.../sqoopimport.properties" um...
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    2. COYa for the above code u need to make a property file. The code above is for importing a table from MySQL to HDFS. For exporting use "new ExportTool().run(options);"
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      1. USJickson T George
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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