题解 | #用where过滤空值练习#
用where过滤空值练习
https://www.nowcoder.com/practice/08c9846a423540319eea4be44e339e35
select device_id ,gender ,age ,university from user_profile where age !=" ";
用where过滤空值练习
https://www.nowcoder.com/practice/08c9846a423540319eea4be44e339e35
select device_id ,gender ,age ,university from user_profile where age !=" ";
相关推荐