materio-base-d7/sites/all/modules/contrib/ecommerce/uc_webform/uc_webform.install

<?php
/**
 * @file
 * Contains install and update functions for uc_webform.
 */

/**
 * Implementation of hook_field_schema.
 */
function uc_webform_schema() {
  $schema = array(
    'uc_webform' => array(
      'fields' => array(
        'nid' => array(
          'type'      => 'int',
          'unsigned'  => TRUE,
          'not null'  => TRUE,
        ),
        'webform_nid' => array(
          'type'      => 'int',
          'unsigned'  => TRUE,
          'not null'  => FALSE,
          'default'   => 0,
        ),
        'submit' => array(
          'type'      => 'int',
          'size'      => 'tiny',
          'unsigned'  => TRUE,
          'not null'  => TRUE,
          'default'   => 0,
        ),
      ),
      'primary key' => array('nid'),
    ),
    'uc_webform_submission' => array(
      'fields' => array(
        'sid'   => array(
          'type'      => 'int',
          'unsigned'  => TRUE,
          'not null'  => TRUE,
        ),
        'order_id'  => array(
          'type'      => 'int',
          'unsigned'  => TRUE,
        ),
      ),
    ),
  );

  return $schema;
}

function uc_webform_update_7000() {
  $schema = uc_webform_schema();
  db_create_table('uc_webform_submission', $schema['uc_webform_submission']);
}

function uc_webform_update_7010() {
  $schema = uc_webform_schema();
  db_add_field('uc_webform', 'submit', $schema['uc_webform']['fields']['submit']);
}

function uc_webform_update_7020() {
  $schema = uc_webform_schema();
  db_change_field('uc_webform', 'webform_nid', 'webform_nid', $schema['uc_webform']['fields']['webform_nid']);
}