LTRIM(s) 用于删除字符串 s 左侧的空格
mysql> SELECT LTRIM(‘ book ‘); +-----------------+ | LTRIM(‘ book ‘) | +-----------------+ | book | +-----------------+
时间: 2024-10-25 15:34:29
LTRIM(s) 用于删除字符串 s 左侧的空格
mysql> SELECT LTRIM(‘ book ‘); +-----------------+ | LTRIM(‘ book ‘) | +-----------------+ | book | +-----------------+