Need help converting SQL to ActiveRecord?

I dont is it works:

Hey ChatGPT, convert this sql query to codeigniter 3 active record:

Code:

SELECT t.idkas, t.tglkas, (
SELECT (SUM(kredit))-(SUM(debet))
FROM kaskecil t2
WHERE t2.idkas <= t.idkas
) AS total
FROM kaskecil t

ChatGPT
You can convert the SQL query to CodeIgniter 3 Active Record format using the following code:

PHP Code:

$this->db->select('t.idkas, t.tglkas');
$subQuery = $this->db->select('(SUM(kredit)) - (SUM(debet))', false)
    ->from('kaskecil t2')
    ->where('t2.idkas <= t.idkas', false)
    ->get_compiled_select();
$this->db->select("($subQuery) AS total", false);
$this->db->from('kaskecil t');
$query = $this->db->get(); 


This code will perform the same query as your SQL query using CodeIgniter 3 Active Record. The subquery is created using the get_compiled_select() method to generate the subquery string. The resulting subquery is then used as a select expression in the main query. Finally, the get() method is called to execute the query and retrieve the results.

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