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What's the difference between findAndModify and update in MongoDB?
I'm a little bit confused by the findAndModify method in MongoDB. What's the advantage of it over the update method? For me, it seems that it just returns the item first and then updates it. But why do I need to return the item first? I read the MongoDB: the definitive guide and it says that i...
What is the difference between UTF-8 and Unicode?
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To expand on the answers others have given:
We've got lots of languages with lots of characters that computers should ideally display. Unicode assigns each character a unique number, or code point.
Computers deal with such number...
How to keep the local file or the remote file during merge using Git and the command line?
...s well do:
git checkout --theirs /path/to/file
to keep the remote file, and:
git checkout --ours /path/to/file
to keep local file.
Then git add them and everything is done.
Edition:
Keep in mind that this is for a merge scenario. During a rebase --theirs refers to the branch where you've bee...
How to drop column with constraint?
...ect_id
WHERE
dc.parent_object_id = OBJECT_ID('tbloffers')
AND c.name = N'checkin'
IF @@ROWCOUNT = 0 BREAK
EXEC (@sql)
END
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Signed versus Unsigned Integers
Am I correct to say the difference between a signed and unsigned integer is:
15 Answers
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How can I force division to be floating point? Division keeps rounding down to 0?
I have two integer values a and b , but I need their ratio in floating point. I know that a < b and I want to calculate a / b , so if I use integer division I'll always get 0 with a remainder of a .
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How to add leading zeros?
...s of 10 width 8 too.
anim <- 25499:25504
x <- 10 ^ (0:5)
paste (and it's variant paste0) are often the first string manipulation functions that you come across. They aren't really designed for manipulating numbers, but they can be used for that. In the simple case where we always have t...
System.Net.Http: missing from namespace? (using .net 4.5)
TL; DR: I'm new to this language and have no idea what I'm doing
16 Answers
16
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Make .git directory web inaccessible
I have a website that I use github (closed source) to track changes and update site. The only problem is, it appears the .git directory is accessible via the web. How can I stop this and still be able to use git?
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Forgot “git rebase --continue” and did “git commit”. How to fix?
...rebasing code in git, I got some merge conflicts. I resolved the conflicts and did:
4 Answers
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