Question

I am trying to run multiple queries on some mysql dbs from a php file. However it is not working. Can anyone point out where I am going wrong?

Here is the contents of the php file:

<?
require_once('/home/xxxxxx/public_html/xxxxxx/dbconnect.php');
$query = "
TRUNCATE TABLE db2.table1;
INSERT INTO db2.table1
SELECT 
       column1, column2, column3, column4
       FROM db1.table1;

TRUNCATE TABLE db2.table2;
INSERT INTO db2.table2
SELECT 
       column1, column2, column3, column4 
       FROM db1.table2;
ANALYZE TABLE db2.table2;
";

$result = @mysql_query($query);    
?>  

Thanks in advance for any help.

Answer 1

You are making only one query. Read docs for mysql_query

mysql_query() sends a unique query
(multiple queries are not supported)
to the currently active database on
the server that’s associated with the
specified link_identifier.

You should split each query in it’s own string and send it one by one to MySQL.

$query1 = "TRUNCATE TABLE db2.table1;";
$query2 = "INSERT INTO db2.table1
SELECT 
       column1, column2, column3, column4
       FROM db1.table1;";

$query3 = "TRUNCATE TABLE db2.table2;";
$query4 = "INSERT INTO db2.table2
SELECT 
       column1, column2, column3, column4 
       FROM db1.table2;";
$query5= "ANALYZE TABLE db2.table2;";

$result1 = @mysql_query($query1);  
$result2 = @mysql_query($query2);  
$result3 = @mysql_query($query3);  
$result4 = @mysql_query($query4);  
$result5 = @mysql_query($query5); 

Or use some other interface function that supports multiple queries. Personally I don’t know if there is such a thing.