Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have a table user (id, name ...) and user_emails (id, user_id, email_id, type). There was no foreign key enforcement between these tables initially. I would like to know all rows in user_emails which don’t have a corresponding user_id in the user table.
select * from user_emails where user_id not in (select id from user)this would probably give you the answer.