MySQL How to join two table in two different database?

Question

I have two database chinmay235 and desarrollo_forum

I want to join two table nuke_follow_votes and smf_members using JOIN query.

nuke_follow_votes table exist in chinmay235 and smf_members exist in desarrollo_forum database.

Code :

<?php
  $dbhost = "localhost";
  $dbuname = "chinmay_db";
  $dbpass = "2014@movie";
  $dbname = "chinmay235";

  mysql_connect($dbhost,$dbuname,$dbpass) or die(mysql_error());
  mysql_select_db($dbname) or die(mysql_error());

  $qry = mysql_query("SELECT a.* FROM chinmay235.nuke_follow_votes a LEFT JOIN desarrollo_forum.smf_members b ON a.user_id=b.id_member WHERE b.user_id IS NOT NULL;") or die(mysql_error());
  $res=mysql_fetch_row($qry);

  echo "Total Record = ".mysql_num_rows($qry);
?>

Output :

SELECT command denied to user 'chinmay235'@'localhost' for table 'smf_members'

I am successfully connect the chinmay235 and getting the table nuke_follow_votes but problem is unable to connect the second database.

Please help me how can i connect and join this two table and get the data correct data.

Answer 1

This is just a permission issue.

It seems your user can't select table on the database desarrollo_forum.

Check the permissions for your user with the following command.

SHOW GRANTS FOR 'chinmay235'@'localhost';

You can add grants with the GRANT command.