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What are the best practices for using a GUID as a primary key, specifically regarding performance?
...d that there are issues about performance when using GUID as Primary Key. Honestly, I haven't seen any problem, but I'm about to start a new application and I still want to use the GUIDs as the Primary Keys, but I was thinking of using a Composite Primary Key (The GUID and maybe another field.)
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How to print number with commas as thousands separators?
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Great thanks. For money amounts, with 2 decimal places - "{:,.2f}".format(value)
– dlink
Mar 21 '16 at 18:44
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YouTube Video Embedded via iframe Ignoring z-index?
...y) the menu, I've got a YouTube video embedded via iframe. If I hover over one of the main level nav items in Firefox, the dropdown menu properly appears on top of the video.
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@RequestParam vs @PathVariable
...d=false) String param2){
.......
}
The @PathVariable annotation has only one attribute value for binding the request URI template. It is allowed to use the multiple @PathVariable annotation in the single method. But, ensure that no more than one method has the same pattern.
Also there is one more...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
...The 'virtualness' of a function is propagated implicitly, however at least one compiler I use will generate a warning if the virtual keyword is not used explicitly, so you may want to use it if only to keep the compiler quiet.
From a purely stylistic point-of-view, including the virtual keyword cle...
Git push existing repo to a new and different remote repo server?
Say I have a repository on git.fedorahosted.org and I want to clone this into my account at github to have my own playground aside from the more "official" repo on fedorahosted.
What would be the steps to initially copy that over?
Within github there is this nice "fork" button, but I can't use thi...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...rrors are related to not being able to find an SSL library and the OP mentioned that they had recently upgraded their installed version of openssl. I had the same issue with the same upgrade scenario; I suspect the reinstall fixes things by causing Ruby to be built against the upgraded libraries (th...
std::wstring VS std::string
...world, before the advent of Unicode.
So their solution was an interesting one: If an application works with char, then the char strings are encoded/printed/shown on GUI labels using the local charset/codepage on the machine. For example, "olé" would be "olé" in a French-localized Windows, but wou...
What is trunk, branch and tag in Subversion? [duplicate]
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My one penny worth to add here; only trouble I have had so far with a repository that violated this convention was when I tried importing the repo into git, using svn-git. It just doesn't like it if the branches are inappropriat...
Add timestamps to an existing table
... @M.Habib I don't think so, but this answer encapsulates it all in one migration nicely.
– littleforest
Apr 30 '18 at 14:36
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