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Random record from MongoDB
I am looking to get a random record from a huge (100 million record) mongodb .
26 Answers
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Select multiple records based on list of Id's with linq
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Contains() will handle that equality check on each id value if you use it as I've written in the answer. You don't have to explicitly write == anywhere when you're trying to compare the items of one set (the array) against another (the datab...
WebSocket with SSL
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The WebSocket connection starts its life with an HTTP or HTTPS handshake. When the page is accessed through HTTP, you can use WS or WSS (WebSocket secure: WS over TLS) . However, when your page is loaded through HTTPS, you can only use WSS - browsers don't allow to "downgrade" security.
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How do I check for a network connection?
... This doesn't always work in WPF. Some laptops return false and some return true
– krilovich
Feb 10 '16 at 17:21
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Edit a commit message in SourceTree Windows (already pushed to remote)
... I edit an incorrect commit message in SourceTree without touching the command line?
4 Answers
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Difference between jQuery’s .hide() and setting CSS to display: none
...er than writing out .css("display", "none") , but what’s the difference and what are both of them actually doing to the HTML element?
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JPA or JDBC, how are they different?
I am learning Java EE and I downloaded the eclipse with glassfish for the same. I saw some examples and also read the Oracle docs to know all about Java EE 5. Connecting to a database was very simple. I opened a dynamic web project, created a session EJB , I used EntityManager and with the get meth...
How to add Active Directory user group as login in SQL Server
...Studio, go to Object Explorer > (your server) > Security > Logins and right-click New Login:
Then in the dialog box that pops up, pick the types of objects you want to see (Groups is disabled by default - check it!) and pick the location where you want to look for your objects (e.g. use ...
How to exit if a command failed?
I am a noob in shell-scripting. I want to print a message and exit my script if a command fails. I've tried:
8 Answers
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How to convert an int to string in C?
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EDIT: As pointed out in the comment, itoa() is not a standard, so better use sprintf() approach suggested in the rivaling answer!
You can use itoa() function to convert your integer value to a string.
Here is an example:
int num = 321;
char snum[5];
// convert 123 to string...