collation

However, the collation would be wrong when the number of digits changed, so leading zeroes are provided.

不过，如果数字的位数发生了变化，整理就会发生错误， 所以要给出前导的零。

CHAR Stores single-byte or multibyte text strings of fixed length (up to 32,767 bytes); supports code-set order in collation of text data.

CHAR 存储固定长度的单字节或多字节的文本字符串（最高可达 32,767 个字节）；在整理文本数据时支持使用代码集顺序。