SQL搜索varchar，其长度在一定范围内

Question

我想搜索名称是否具有特定的字符长度。创建一个搜索名称的查询，例如5个字符到10个字符之间。我猜它可能与正则表达式有关，但真的迷路了。

我想要这样的东西

$qry = "SELECT * FROM members WHERE names characters > 5 AND names characters < 10"

这是如何实现的？

Answer 1

如果您想要专门找到public static Location getLastLocation(Context context){ return SmartLocation.with(context) .location() .getLastLocation(); } （以字符为单位测量的字符串长度），您可以使用：

character length

Read here - length vs char_length

Answer 2

$qry = "SELECT * FROM members WHERE LENGTH(names) BETWEEN 5 AND 10"

Answer 3

以下代码对您有所帮助，

SELECT members.*, 
LENGTH(names) AS ln 
FROM members 
HAVING ln 
BETWEEN 5 AND 10 ;