mysql query not working

Question

0.00/5 (No votes)

See more:

i wrote the query as

select id,count(id),flag from mytable group by id

but i get the result in single column

my table is

ID | flag
1  | 0
2  | 0
3  | 1
2  | 0
1  | 0
3  | 1
2  | 0
1  | 1
2  | 1
3  | 1

i want the report as this

ID | Count Flag O | Count Flag 1
1  |    2         | 1
2  |    3         | 1
3  |    0         | 3

please help me... thnks in advance :)

Posted 20-May-14 21:37pm

pradnyaa

Add a Solution

3 solutions

Solution 2

Select ID, SUM(case when flag = 0 then 1 else 0 end) as [Count Flag O], SUM(case when flag = 1 then 1 else 0 end) as [Count Flag 1] from test group by ID

Posted 20-May-14 21:47pm

Ravi Shankar Dokka

Comments

CPallini 21-May-14 4:02am

Damn, you beat me!
5.

Solution 1

You can use case statement for achieving this.

Posted 20-May-14 21:42pm

Arun Kumar Ponnusamy

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)

CPallini · Accepted Answer · 2014-05-20T22:00:00

Solution 3

SQL

SELECT  ID,
        SUM(IF(`flag` = 0, 1, 0)) 'Count Flag 0',
        SUM(IF(`flag` = 1, 1, 0)) 'Count Flag 1'
FROM    MyTable
GROUP   BY ID;

Posted 20-May-14 22:00pm

CPallini

Comments

pradnyaa 21-May-14 4:12am

thanks it worked :)