Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
327 views
in Technique[技术] by (71.8m points)

sql - WHERE all IS NOT NULL

How can I run a MySQL query that selects everything that is not null? It would be something like

SELECT * FROM schedule WHERE ((all)) IS NOT NULL

Do I just remove the all and go..?

SELECT * FROM schedule WHERE IS NOT NULL
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You'll have to explicitly state the condition on each column, so e.g.

SELECT *
FROM schedule 
WHERE id IS NOT NULL
  AND foo IS NOT NULL
  AND bar IS NOT NULL; -- and so on..

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...