Fastest transfer of data from MSSQL to MySQL via PHP

Question

I need to store data from a remote MS SQL db into a local MySQL db; I need to do this using PHP.

The fetching of the data from MSSQL is simple enough:

SELECT orderRef
     , orderValue
  FROM remoteTbl

This results in 100k rows. I want to store this in a local MySQL database using PHP. Simply enough, I can do (with the addition of another field I want) :

while(list($orderRef, $orderValue) = mssql_fetch_array($result)){

mysql_query("INSERT INTO localTbl (orderRef, orderValue, updated)
                           VALUES ('$orderRef', '$orderValue', NOW())");

} // done all rows

This seems wasteful for 100k rows of data though.

Is there some way I can do this more efficiently?

• Updated further to comments:

• by using the PHP resource from the MSSQL query perhaps? I need to do things with the data, and the MSSQL DBMS is read only.

Thanks

Answer 1

You should probably use mysqli since mysql functions aren't going to be around any more but to speed this up you could do one big insert statement like so.

$sql = "INSERT INTO localTbl (orderRef, orderValue, updated) VALUES ";

while(list($orderRef, $orderValue) = mssql_fetch_array($result)){

    $sql_rows[] = "('$orderRef', '$orderValue', NOW())";

}

mysql_query($sql . implode(',', $sql_rows) . ';');