Mysql中写循环SQL语句解决办法

Mysql中写循环SQL语句
我有想给 id(471-541)中的没一个用户增加一条相同数据，请问mysql中怎么写这个循环语句

[解决办法]
id(471-541)中的没一个用户增加一条相同数据：举例说明
[解决办法]

SQL code

CREATE TEMPORARY TABLE seqnumber(  id int not null auto_increment primary key,  flag bit) auto_increment=471 ENGINE=MEMORY;INSERT INTO seqnumber(flag)    SELECT 0 FROM information_schemas.COLUMNS LIMIT 70;CREATE TEMPORARY TABLE tmp_tb ENGINE=MEMORYAS    SELECT        A.id,'username' AS username    FROM seqnumber AS A        LEFT JOIN tb AS B           ON A.id=B.id    WHERE B.id IS NULL;INSERT tb(id,username) SELECT * FROM tmp_tb;