How to count associated objects?

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Correct way to count associated objects using JPQL

What is the correct way to write this JPA query? I am just guessing as I cant work it out or find it in my JPA book. Query query=em.createQuery("select m from Meeting m where count(m.attendees) = 0"); return query.getResultList(); I am currently trying this with Hibernate and I get a mysql error! ERROR org.hibernate.util.JDBCExceptionReporter - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')=0'...

Answer:

To strictly answer the title of the question, use SIZE: Query query=em.createQuery("select m from...

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Other solutions

Is the Associated Press' delegate count for the 2012 Republican Presidential Nomination really accurate?

I ask because it's my understanding: --that the delegate count by the Associated Press (and similar delegate counts from the U.S. of A. national mainstream media) is just a projection, not the real delegate count *1 AND *2 --that we won't know how many...

Answer:

The majority of the media has been running with projected delegate counts based largely upon the result...

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Answer:

the suffering people as victims and criminals who are hated. not all criminals are hated but can be...

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T3GHUUWTJ73KP3HSO5JBCN2HFE at Yahoo! Answers Mark as irrelevant Undo

Why do I count words and objects all of the time?

I've been doing this since I was about 7 and in mid-twenties now. I mainly feel letters and objects need a "mate" so that's the reasoning behind it. For instance, if someone speaks I count the letters of the words they're speaking - not all...

Answer:

Neuroticism. you're fine.

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_______ music is generally associated with nonmusical ideas and objects.?

_______ music is generally associated with nonmusical ideas and objects. A. Character C. Recital B. Program D. Literary

Answer:

B) Program music is associated with non-musical themes, ideas, emotions, objects, etc. in the western...

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Some 3D objects that can be associated with Queen Elizabeth I?

I need 2 3D objects that can be associated with Queen Elizabeth I, preferably easily built with paper. Thanks :D

Answer:

Look at some of her portraits. They may offer some possibilities. Scroll all the way down; look carefully...

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What are instances where you have to count a large number of similar objects?

Are there any real-life situations where you need to get a count of objects, such as the number of people in a crowd or the number of bacteria in a lab sample. Something along those lines, but more frequently encountered.

Answer:

If you work in any kind of industry or service where inventory of products or components is needed....

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At what age do most children learn to count objects?

Does anyone know the range of ages that children start learning to count objects (not counting rote memorization of numbers, etc). Thanks!

Answer:

Well a 2year old can say 1....2....3...4....5 but if you ask them to give you 3blocks they will most...

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Objects associated with graphic design?

I'm trying to think of as many objects related to graphic design as possible. I have laptop, mouse, x-acto knife, ruler, cutting board, paper, and spray adhesive. I have a mental block right now, so any help would be appreciated,

Answer:

What, no good old-fashioned pencils or paint, with all their accessories? No technical pens (usually...

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