Which clause you will use if you want to delete all tuples in a table code example
Example 1: sql delete where in
-- Deletes all records where `columnName` matches the values in brackets.
DELETE FROM tableName WHERE columnName IN ('val1', 'val2', 'val3');
Example 2: delete query
public function deletedata(){
$this->db->where('id', 2);
$this->db->delete('table_name');
}