右补0:select RPAD(id,8,‘0’) as num from tmp;左补0:select LPAD(id,8,‘0’) as num from tmp; 参数 :id:为字段名称8:为补全的位数0:代表补的参数0 相关文章: 2021-09-27 2021-09-05 2022-12-23 2022-12-23 2021-08-02 2022-12-23 2021-05-08 2022-12-23