SQL10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 != 'NULL';
#SQL练习#SQL专项练习 文章被收录于专栏
SQL语句
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 != 'NULL';
#SQL练习#SQL语句
相关推荐
查看17道真题和解析招聘动态