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How does Facebook Sharer select Images and other metadata when sharing my URL?
...when my page gets shared?
Facebook has a set of open-graph meta tags that it looks at to decide which image to show.
The keys one for the Facebook image are:
<meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
<meta property="og:image:secure_url" content="https://...
What is the difference between min SDK version/target SDK version vs. compile SDK version?
...DK that your application can run on. Usually this is because of a problem with the earlier APIs, lacking functionality, or some other behavioural issue.
The target sdk version is the version your application was targeted to run on. Ideally, this is because of some sort of optimal run conditions. If...
The provider is not compatible with the version of Oracle client
...er but when I run the aspx page I get a " The provider is not compatible with the version of Oracle client " error message. Any help would be appreciated.
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Dynamic Sorting within SQL Stored Procedures
This is an issue that I've spent hours researching in the past. It seems to me to be something that should have been addressed by modern RDBMS solutions but as yet I have not found anything that really addresses what I see to be an incredibly common need in any Web or Windows application with a d...
How to directly initialize a HashMap (in a literal way)?
Is there some way of initializing a Java HashMap like this?:
14 Answers
14
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How to copy a row and insert in same table with a autoincrement field in MySQL?
In MySQL I am trying to copy a row with an autoincrement column ID=1 and insert the data into same table as a new row with column ID=2 .
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Hashing a string with Sha256
...your friend's PHP code is doing.)
For ASCII text, Encoding.UTF8 will definitely be suitable. If you're aiming for perfect compatibility with your friend's code, even on non-ASCII inputs, you'd better try a few test cases with non-ASCII characters such as é and 家 and see whether your results stil...
Fast way of finding lines in one file that are not in another?
...rmat="" file1 file2
The input files should be sorted for this to work. With bash (and zsh) you can sort in-place with process substitution <( ):
diff --new-line-format="" --unchanged-line-format="" <(sort file1) <(sort file2)
In the above new and unchanged lines are suppressed, so on...
How do I find the authoritative name-server for a domain name?
...
You'll want the SOA (Start of Authority) record for a given domain name, and this is how you accomplish it using the universally available nslookup command line tool:
command line> nslookup
> set querytype=soa
> stackoverflow.com
Server: 217.3...
Why am I getting 'Assembly '*.dll' must be strong signed in order to be marked as a prerequisite.'?
...and started to get this problem when building my project in Visual Studio. It's important to tell you that I haven't had this problem before. What could cause this to happen?
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