db_select([$database = ''])
class CI_DB_query_builder reset_query()
set_update_batch($key[, $value = ''[, $escape = NULL]])
last_row([$type = 'object'])
initialize()
limit($value[, $offset = 0])
escape_str($str[, $like = FALSE])
is_write_type($sql)
CodeIgniter has a config file that lets you store your database connection values (username, password, database name, etc.). The config file is located at application/config/database
order_by($orderby[, $direction = ''[, $escape = NULL]])
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