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Asked: 2026-05-26T20:02:22+00:00

I have three tables OWNERS: pk name POSTS: pk, post_date, owner_pk REPLIES: pk,reply_date, post_pk,owner_pk,comment_count

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I have three tables

OWNERS: pk name
POSTS: pk, post_date, owner_pk
REPLIES: pk,reply_date, post_pk,owner_pk,comment_count

Between two dates: date1 and date2 I want a result as:

OWNER:name COUNT(posts) SUM(comment_count)

My problem is that I can’t understand how to write a single query that sums the POSTS REPLIES tables separatly.

Ex: Day1 a post is done with 2 comments. Day2 a post is done with no comments. The reply table stores the total number of comments for a given post/day.

PostA     Day1
CommentA1 Day1 
CommentA2 Day1 
PostB     Day2
CommentA3 Day2
PostC     Day3

Running the query for Day1:

Owner:Name count(post) sum(comment_count)
OwnerName  1           2

Running the query for Day2:

OwnerName  1         1

Running the query for Day3:

OwnerName  1         0
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1 Answer

  1. Editorial Team

    You might need to provide a bit more detail in your question, but I suspect you’re after something like this:

    SELECT name, COUNT(posts.pk), COUNT(replies.pk)
  FROM owners, OUTER (posts, OUTER replies)
  WHERE owners.pk = posts.owner_pk
    AND posts.pk = replies.post_pk
    AND (posts.post_date BETWEEN ? AND ? OR replies.reply_date BETWEEN ? AND ?)
  GROUP BY name
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