Deleting Data

Function Description

In HBase, data (a row of data or data sets) is deleted using the delete method of a Table instance.

The specified deletion method is based on the scenario.

Sample Code

public void testDelete() {
  LOG.info("Entering testDelete.");

  byte[] rowKey = Bytes.toBytes("012005000201");

  Table table = null;
  try {
    // Instantiate an HTable object.
    table = conn.getTable(tableName);

    // Instantiate a Delete object.
    Delete delete = new Delete(rowKey);

    // Submit a delete request.
    table.delete(delete);

    LOG.info("Delete table successfully.");
  } catch (IOException e) {
    LOG.error("Delete table failed " ,e);
  } finally {
    if (table != null) {
      try {
        // Close the HTable object.
        table.close();
      } catch (IOException e) {
        LOG.error("Close table failed " ,e);
      }
    }
  }
  LOG.info("Exiting testDelete.");
}