1.select * from 表 where len(字段) = 值 2.select * from tabel where field1 like "__" (引号内是N个下划线)一个下划线相当于 len(XX) =1 相关文章: 2021-07-07 2021-12-03 2022-12-23 2021-11-06 2022-01-13 2022-12-23 2022-12-23