MyBatis Plus LambdaQuery Between Condition with Null Value

If you want to query using `between` condition with `null` value using MyBatis Plus's lambda query, you can use the following code snippet:\n\njava\nimport com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;\nimport com.baomidou.mybatisplus.core.toolkit.Wrappers;\n\n// ...\n\nQueryWrapper<User> queryWrapper = Wrappers.<User>lambdaQuery();\nqueryWrapper.between(User::getAge, null, null);\n\nList<User> userList = userMapper.selectList(queryWrapper);\n\n\nIn the above code, `User` is the entity class for the database table. The `User::getAge` represents the column name on which you want to apply the `between` condition. By passing `null` as the start and end values, it will effectively select all rows without any specific range limitation.\n\nNote that you need to replace `User` with your actual entity class and `User::getAge` with the appropriate column in your case. Also, make sure you have the necessary imports in your code.