add_column($table[, $field = array()[, $_after = NULL]])

Information From Executing a Query $this->db->insert_id() The insert ID number when

The Database Caching Class permits you to cache your queries as text files for reduced database load.

join($table, $cond[, $type = ''[, $escape = NULL]])

CodeIgniter’s database abstraction allows you to use transactions with databases that support transaction-safe table types. In MySQL, you’ll need to be running InnoDB or BDB

trans_complete()

count_all([$table = ''])

is_write_type($sql)

escape_str($str[, $like = FALSE])

list_fields()