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    <p>A complete example will look like this</p> <p><strong>Create a class that implements CustomTaskChange or CustomSqlChange.</strong> </p> <pre><code>package com.example; import liquibase.change.custom.CustomTaskChange; import liquibase.database.Database; import liquibase.database.jvm.JdbcConnection; import liquibase.exception.CustomChangeException; import liquibase.exception.SetupException; import liquibase.exception.ValidationErrors; import liquibase.logging.LogFactory; import liquibase.resource.ResourceAccessor; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.sql.PreparedStatement; import java.sql.ResultSet; public class DataLoaderTask implements CustomTaskChange { //to hold the parameter value private String file; private ResourceAccessor resourceAccessor; public String getFile() { return file; } public void setFile(String file) { this.file = file; } @Override public void execute(Database database) throws CustomChangeException { JdbcConnection databaseConnection = (JdbcConnection) database.getConnection(); try { //Opening my data file BufferedReader in = new BufferedReader( new InputStreamReader(resourceAccessor.getResourceAsStream(file))); //Ignore header String str = in.readLine(); while ((str = in.readLine()) != null &amp;&amp; !str.trim().equals("")) { LogFactory.getLogger().info("Processing line "+ str); //Do whatever is necessary } in.close(); } catch (Exception e) { throw new CustomChangeException(e); } } @Override public String getConfirmationMessage() { return null; } @Override public void setUp() throws SetupException { } @Override public void setFileOpener(ResourceAccessor resourceAccessor) { this.resourceAccessor = resourceAccessor; } @Override public ValidationErrors validate(Database database) { return null; } } </code></pre> <p><strong>In the changeset xml you could use the class as below</strong></p> <pre><code>&lt;changeSet id="1" author="murali" runAlways="false" failOnError="true" &gt; &lt;customChange class="com.example.DataLoaderTask"&gt; &lt;param name="file" value="/com/example/data/user.csv" /&gt; &lt;/customChange&gt; &lt;/changeSet&gt; </code></pre> <p>For me the data file is in src/main/resources/com/example/data directory</p> <p>Hope this helps</p>
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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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