In Drupal 7,  you need not to use the statement "db_query("DROP TABLE res_sbmt");"
apart from this, if you are only using hook_install and hook_uninstall to remove schema, please dont implement that, in D7 it does of its own :).

On Wed, Aug 8, 2012 at 7:35 AM, Kamal Palei <palei.kamal@gmail.com> wrote:
Hi Drupal Experts
Greetings of the day!!!

I am relatively new to Drupal 7.

I am facing a strange issue. Want to create a table during install of my module. My install file looks as below. My custom module name is resmsubmt.
I have tried several hours (with clearing cache etc..), only 1 time I saw the table was created. I deleted that table manually (using phpmyadmin and sql statement).
After that I cleared cache, tried with different table names , always I find the table is not created after installing and enabling my module. Drupal shows module is installed successfully, I enable the module, I do not get any error, then why table is not getting created?

Did anybody face this problem anytime?
Please let me know what could be the issue here?

--------------------- resmsubmt.install file --------------------------------

<?php
function resmsubmt_schema() {
  $schema['res_sbmt'] = array(
    'description' => 'The base tables for resume submission.',
    'fields' => array(
      'uid' => array(
        'description' => 'Id of candidate.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'name' => array(
        'description' => 'Name of candidate.',
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
      ),
    ),
    'primary key' => array('uid'),
  );

  return $schema;
}

function resmsubmt_uninstall() {
  drupal_uninstall_schema('resmsubmt');
  db_query("DROP TABLE res_sbmt");
  cache_clear_all('variables', 'cache');
}


Regards
Kamal
Necs

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Regards,
Vaibhav Jain