MYSQL:只拉最小字符长度的单词

Question

如何从MYSQL中仅提取最多50个字符的单词？

$query = "SELECT * FROM example ORDER BY ID DESC LIMIT 200"; 

Answer 1

尝试CHAR_LENGTH在WHERE约束中使用该函数:

SELECT * FROM example WHERE CHAR_LENGTH(word) <= 50 ORDER BY ID DESC LIMIT 200

CHAR_LENGTH返回字符串中的字符数.LENGTH返回字节数.CHAR_LENGTH如果您的单词可以包含多字节字符,则可以使用它.