Deprecated - Database compatibility

Am getting well with drupal but not good with databases. I mysql, I got this error after installing the following modules ejectorseat, session limit, node expire, autoespire, bean booking time slot

Please assist me. Please I need your help.

Hi to all, I'm new on this field, I've done various researches on the web to find out how I can realize this script in php:
I'm trying to make a call, query, with my mySQL database to show the result of the query into a container (web page) in Drupal. My script is attached below:

Hi,

Can anybody help me out??

I have created a sortable table using Drupal's code. Now I want to make the header name and value in row center aligned. Not able to recognize how doing that.

posting sample code :

$header = array(
array('data' => t(' ID# '), 'field' => 'cust.customer_id'), //
array('data' => t('First Name'), 'field' => 'cust.res_name'), //
array('data' => t('Last Name'), 'field' => 'cust.res_lname'), // these header names (ID # , First Name...etc) should be center aligned
array('data' => t('Email'), 'field' => 'cust.mail_id'), //
array('data' => t('Phone'), 'field' => 'cust.customer_phone'),//
);

$result = db_select('customer_details', 'cust')
->extend('TableSort')
->extend('PagerDefault')
->limit(20)
->fields('cust',array('customer_id', 'res_lname', 'res_mname', 'res_name', 'mail_id', 'con_code1', 'con_code2', 'customer_phone')
->orderByHeader($header)
->execute();

$rows = array();
$row[] = ''.$r->customer_id.''; //
$row[] = ''.$r->res_name.''; //
$row[] = ''.$r->res_lname.''; //these values should be center aligned
$row[] = ''.$r->mail_id.''; //

Hi,,

Can anyone clear my doubt?????

As per my requirement I want to concatenate two fields of database and display under the single column of the header. I am using this code:

$header = array(
array('data' => t('Customer_id'), 'field' => 'cust.customer_id'),
array('data' => t('Last Name'), 'field' => 'cust.res_lname'), //here I want to add one more field cust.res_name
);

hello . I install drupal version 8.x error

An AJAX HTTP error occurred.
HTTP Result Code: 200
Debugging information follows.
Path: http://localhost/drupal8/core/install.php?langcode=en&profile=standard&i...
StatusText: OK
ResponseText:
Fatal error: Maximum execution time of 30 seconds exceeded in D:\www\drupal8\core\lib\Drupal\Core\Database\Statement.php on line 57

Thanks!

hello evey one here, i have question about connecting database using Drupal??
can i get a Module to do that operation (database connection)