CodeIgniter Active Record: Load One Row at a Time

Question

The normal result() method described in the documentation appears to load all records immediately. My application needs to load about 30,000 rows, and one at a

Answer 1

Well, there'se the row() method, which returns just one row as an object, or the row_array() method, which does the same but returns an array (of course).

So you could do something like

$sql = "SELECT * FROM yourtable";
$resultSet = $this->db->query($sql);
$total = $resultSet->num_rows();

for($i=0;$i<$total;$i++) {
  $row = $resultSet->row_array($i);
}

This fetches in a loop each row from the whole result set.
Which is about the same as fetching everyting and looping over the $this->db->query($sql)->result() method calls I believe.

If you want a row at a time either you make 30.000 calls, or you select all the results and fetch them one at a time or you fetch all and walk over the array. I can't see any way out now.