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Select rows which are not present in other table
...ster.
NOT IN
Only good without NULL values or if you know to handle NULL properly. I would not use it for this purpose. Also, performance can deteriorate with bigger tables.
SELECT ip
FROM login_log
WHERE ip NOT IN (
SELECT DISTINCT ip -- DISTINCT is optional
FROM ip_location
);
...
remove legend title in ggplot
...ed in version 0.9.1)'
I replaced opts(title = "Boxplot - Candidate's Tweet Scores") with
labs(title = "Boxplot - Candidate's Tweet Scores"). It worked!
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How to avoid overflow in expr. A * B - C * D
...low when this answer which is the simplest and the best has got such a low score compared to the top scored answer.
– bradgonesurfing
Nov 6 '12 at 15:22
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How can I pad a value with leading zeros?
... that it won't take more characters than your limit. In our case we have a score which we store in Amazon SDB. As you know SDB can't compare numbers, so all scores have to be zero padded. This is extremely easy and effective!
– Krystian
ServiceStack vs ASP.Net Web API [closed]
...e it. However, I have seen that Microsoft has released the ASP.Net Web API project as part of the new MVC 4 beta. Has anyone looked at the new Web API project? Can you give any pros/cons of each system?
...
What is the difference between `after_create` and `after_save` and when to use which?
...e database before the action is executed
after_commit :calculate_credit_score
def calculate_credit_score
#Call a Cron job
end
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Landscape printing from HTML
...a both disregard this as far as I have seen.
– Justin808
May 17 '11 at 22:43
2
size: landscape is...
Difference between CPPFLAGS and CXXFLAGS in GNU Make
...ard, and it would be better if they used CXXFLAGS.
– Score_Under
Aug 8 '18 at 9:22
@Score_Under I don't disagree with ...
Convert PDF to clean SVG? [closed]
...
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answered Apr 23 '12 at 20:53
Saintt Sheldon P...
Cached, PHP generated Thumbnails load slowly
...ormance bottlenecks. You should be getting huge performance gains once you score higher in Y!Slow or Page Speed.
These tests will tell you what's wrong and what to change.
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