SQL查询:按字符长度sorting?
早上,有可能按字符长度sortingsql数据行吗?
例如SELECT * FROM database ORDER BY data.length()
我想你想用这个: http : //dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_char-length
SELECT * FROM table ORDER BY CHAR_LENGTH(field)
你可以只使用LENGTH(),但要小心,因为它计算字节数(这不会给你多字节string的预期结果)。
SELECT * FROM database ORDER BY Len(data)
SELECT * FROM table ORDER BY length(data) desc
数据是varchar字段
SELECT * FROM YourTable ORDER BY LENGTH(Column_Name) DESC
例如;
SELECT * FROM Customer ORDER BY LENGTH(CustomerName) DESC