Solved

mysql joining table with itself

Posted on 2013-01-28
6
152 Views
Last Modified: 2013-01-29
Hi , what is wrong with this syntax:

  SELECT a.*,  b.* FROM   'pages`  a 
 left join  'pages'  b  on (b.parent_id = a.id)  

WHERE a.parent_id = 1

Open in new window

0
Comment
Question by:sniger
6 Comments
 
LVL 21

Expert Comment

by:Tapan Pattanaik
ID: 38830022
SELECT a.*,  b.* FROM   'pages'  a
 left join  'pages'  b  on b.parent_id = a.id

WHERE a.parent_id = 1
0
 
LVL 8

Assisted Solution

by:guvera
guvera earned 250 total points
ID: 38830023
Hi,

Just remove the single code in pages and check it. Also look the below link. Hope it may helpful to you

http://stackoverflow.com/questions/4005643/mysql-left-join-one-table-to-itself
http://forums.mysql.com/read.php?10,224134,224140#msg-224140

Thanks
Guvera
0
 
LVL 21

Expert Comment

by:Tapan Pattanaik
ID: 38830028
SELECT a.*,  b.* FROM   'pages'  a
 left join  'pages'  b  on b.parent_id = a.id

WHERE b.parent_id = 1
0
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 35

Expert Comment

by:Robert Schutt
ID: 38830062
Use backticks consistently to quote table names or leave them out altogether.
 SELECT a.*,  b.* FROM   `pages`  a 
 left join  `pages`  b  on (b.parent_id = a.id)  
 WHERE a.parent_id = 1

Open in new window

0
 
LVL 19

Expert Comment

by:Bhavesh Shah
ID: 38830416
try this
SELECT a.*,  b.* 
FROM   pages a left join  pages  b  
on (b.parent_id = a.id)  
WHERE a.parent_id = 1

Open in new window

0
 
LVL 31

Accepted Solution

by:
awking00 earned 250 total points
ID: 38831522
You have 'pages` a with a leading quote and an ending back quote and 'pages' b with both a leading and ending quote.
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
This article describes how to use the timestamp of existing data in a database to allow Tableau to calculate the prior work day instead of relying on case statements or if statements to calculate the days of the week.
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…
This is a video that shows how the OnPage alerts system integrates into ConnectWise, how a trigger is set, how a page is sent via the trigger, and how the SENT, DELIVERED, READ & REPLIED receipts get entered into the internal tab of the ConnectWise …

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now