Which SQL Statement Can Solve my Problem

Question

4.00/5 (1 vote)

See more:

I have a two tables with following details

Table 1: tbl_comments
fields: comment_id (Primary Key), comment_text, thread_id, user_id (Foreign Key);

Table 2: tbl_users
fields: user_id (Primary Key), user_name, user_total_posts, user_total_threads;

Suppose There are 5 Comments of a thread (thread_id = 110) in tbl_comments and I want to Select all those comments using (SELECT * FROM tbl_comments WHERE thread_id=110) but the problem is, I also want to get the user_total_posts and user_total_threads data that is in tbl_users on the base of user_id in tbl_comments.

Which SQL Statements can solve my problem, please guide me.

Posted 10-Feb-13 23:15pm

rashidfarooq

Add a Solution

2 solutions

Solution 2

Have you heard of JOINS ?
Try:

SQL

SELECT C.*, U.user_total_posts, U.user_total_threads
FROM tbl_comments AS C
LEFT OUTER JOIN tbl_users AS U
ON C.user_id = U.user_id
WHERE C.thread_id=110

Posted 10-Feb-13 23:24pm

Kuthuparakkal

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

_Zorro_ · Accepted Answer · 2013-02-10T23:23:00

Solution 1

Have you tried JOINING your tables?

Using Joins

Try something like this:

SQL

SELECT
    tbl_users.* --Choose desired fields
    ,tbl_comments.* --Choose desired fields
FROM
    tbl_users
    
    INNER JOIN tbl_comments ON
        tbl_comments.user_id = tbl_users.user_id
WHERE
    tbl_comments.thread_id = 110

Hope it helps

Posted 10-Feb-13 23:23pm

_Zorro_

Comments

rashidfarooq 11-Feb-13 11:38am

Thanks for the Solution That Really Worked Fine for me. My Problem solved...