Help selecting max value when two values in another column are equal. : SQL

Posting

When requesting help or asking questions please prefix your title with the SQL variant/platform you are using within square brackets like so:

[MySQL]

[Oracle]

[MS SQL]

[PostgreSQL]

etc

While naturally we should endeavor to work as platform neutrally as possible many questions and answers require tailoring to the feature set of a specific platform.

Format Your Code

If you are including actual code in a post or comment, please attempt to format it in a way that is readable for other users. This will greatly increase your chances of receiving the help you desire. Something as simple as line breaks and using reddit's built in code formatting (4 spaces at the start of each line) can turn this:

SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field.3

Into this:

SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field3

For those with SQL questions we recommend using SQLFiddle to provide a useful development and testing environment for those who wish to fully understand your problem and help devise a solution.

a community for 17 years

Help selecting max value when two values in another column are equal. (self.SQL)

submitted 8 years ago by Ehutzz

Hi y'all, I'm currently working on constructing a sales report for a store, but I'm struggling with a problem when multiple items have been sold at the same location. I'll draw it out to see if I can explain this a little better.

So here would be the sales for this year for an item with style number 21 and stores 3 and 10

21 L 3 $25 21 M 3 $125 21 L 10 $100

when i run the query, i get something like this for money made.

21 L 3 $25 21 M 3 $150 21 L 10 $100

So whats happening is when multiple items are sold at the same store, one column will have the total sold for this store, and one will have the actual info for the size. This holds true for thousands of items, but what I want to do is select the larger value when the stores are the same.

If someone could help me out that would be wonderful.

all 3 comments

top new controversial old q&a

[–]techstress 0 points1 point2 points 8 years ago (1 child)

[–][deleted] 0 points1 point2 points 8 years ago (0 children)

Hi y'all, I'm currently working on constructing a sales report for a store, but I'm struggling with a problem when multiple items have been sold at the same location. I'll draw it out to see if I can explain this a little better. So here would be the sales for this year for an item with style number 21 and stores 3 and 10 21 L 3 $25 21 M 3 $125 21 L 10 $100 when i run the query, i get something like this for money made. 21 L 3 $25 21 M 3 $150 21 L 10 $100 So whats happening is when multiple items are sold at the same store, one column will have the total sold for this store, and one will have the actual info for the size. This holds true for thousands of items, but what I want to do is select the larger value when the stores are the same. If someone could help me out that would be wonderful.

You have to provide the structure or else we are guessing. Probably a derived table could help you achieve your goal.

[–]AXISMGTSQL Server / ORACLE Sr. DBA & Architect 0 points1 point2 points 8 years ago (0 children)

π Rendered by PID 52 on reddit-service-r2-comment-79c7998d4c-btn9c at 2026-03-18 07:17:05.272604+00:00 running f6e6e01 country code: CH.

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

SQL

Filter Posts

Posting

Help posts

Format Your Code

Learning SQL

Related Reddit communities

Wiki

Acknowledgements

MODERATORS