Question

I have a query

$STH_1 = $DBH_R->query("SELECT table_name                        
                         FROM information_schema.tables                        
                        WHERE table_name                        
                         LIKE 'v_c_ei\_9%'
                         ");

$stmts_1 = array();

while (($row_1 = $STH_1 -> fetch_assoc()) !== null){
$table_name = $row_1['table_name'];

The result of this query is, generally, the list of the tables in order:

v_c_ei_9001
v_c_ei_9002
...........
v_c_ei_9030

In another table, v_c_country, I have 2 columns: table_name and country_name,
(because for example, v_ei_c_9001 is Australia, v_ei_c_9012 is Great Britain etc.)

Generally, as the result, I need the list of the tables (table names) from query above but in ORDER ASC from country names from table v_c_country.

How to change the query?

Answer 1

SELECT t.table_name                        
  FROM information_schema.tables AS t
  JOIN v_c_country               AS c ON t.table_name = c.table_name
 WHERE t.table_name LIKE 'v_c_ei\_9%'
 ORDER BY c.country_name ASC;

For testing and verification, add c.country_name to the select-list.