Edit - Stack Overflow

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

Required fields*

Rev

2

Hey, I know this answer is 7 years old, but if you're still around would you mind explaining how it works? Solved my problem as well!

Lou
– Lou

2019-12-06 18:04:17 +00:00
Commented Dec 6, 2019 at 18:04
8

Using a HAVING here instead of a second SELECT...WHERE causes this to be a single query, instead of the second option which executes that second SELECT...WHERE call many times. See more here: stackoverflow.com/q/9253244/550975

Serj Sagan
– Serj Sagan

2019-12-06 18:38:36 +00:00
Commented Dec 6, 2019 at 18:38
I get the infamous [EmailAddress] must appear in the GROUP BY clause or be used in an aggregate function error. Is the only fix - editing the sql_mode?

Volodymyr Bobyr
– Volodymyr Bobyr

2020-07-16 16:21:17 +00:00
Commented Jul 16, 2020 at 16:21
Well, in the query above, [EmailAddress] IS in the GROUP BY

Serj Sagan
– Serj Sagan

2023-02-02 21:25:36 +00:00
Commented Feb 2, 2023 at 21:25

Add a comment |

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

formatting help »
answering help »

Collectives™ on Stack Overflow