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Facebook database design?
...lumns:
UserID PK FK
FriendID PK FK
(This table features a composite primary key made up of the two foreign
keys, both pointing back to the user table. One ID will point to the
logged in user, the other ID will point to the individual friend
of that user)
Example Usage:
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Git branch strategy for small dev team [closed]
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Also Scott Chacon has an excellent article on his site on how Github's workflow with Git works - scottchacon.com/2011/08/31/github-flow.html
– program247365
Dec 29 '11 at 21:51
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Right query to get the current number of connections in a PostgreSQL DB
...ase don't add noise to specific questions.
– bugmenot123
Jun 5 '19 at 11:08
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Bootstrap full-width text-input within inline-form
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See my edit above. I think the Site.css in the ASP.NET template may have gotten me on this one. However, this is a terrific answer and very helpful for future reference.
– Killnine
Apr 1 '14 at 4:00
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ViewParam vs @ManagedProperty(value = “#{param.id}”)
...userConverter"). Invoking page by http://example.com/context/user.xhtml?id=123 will pass the id parameter through the converter and set the User object as a bean property.
@ManagedProperty:
Sets the value immediately after bean's construction.
Set value is available during @PostConstruct which al...
How dangerous is it to access an array out of bounds?
...inistrative) access, for example. Even with ordinary user privileges, a malfunctioning program can consume excessive resources (CPU, memory, disk), possibly bringing down the entire system. A lot of malware (viruses, etc.) exploits buffer overruns to gain unauthorized access to the system.
(One his...
How to remove convexity defects in a Sudoku square?
I was doing a fun project: Solving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have completed the task, but at the end I found a little problem for which I came here.
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py2exe - generate single executable file
...lete description of the bundle_file option quoted directly from the py2exe site*
Using "bundle_files" and "zipfile"
An easier (and better) way to create
single-file executables is to set
bundle_files to 1 or 2, and to set
zipfile to None. This approach does
not require extracting fi...
Convert a PHP script into a stand-alone windows executable
...kflow you are used to remains the same, the step of turning an existing website into a desktop application is basically a matter of copying it to "www/" directory. Using SQLite database is optional, you could embed mysql/postgresql database in application's installer.
PHP Nightrain
https://github....
SET versus SELECT when assigning variables?
...(so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from its previous valu...