class CI_DB_query_builder reset_query()

count_all([$table = ''])

limit($value[, $offset = 0])

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

database_exists($database_name)

elapsed_time([$decimals = 6])

table_exists($table_name)

db_select([$database = ''])

repair_table($table_name)

trans_off()