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How to update SQLAlchemy row entry?
Assume table has three columns: username , password and no_of_logins .
5 Answers
5...
Select distinct using linq [duplicate]
...ws = from c in dc.EDI_RAW_TCRs where c.Batch_ID == 20830 select c; IEnumerable<EDI_RAW_TCR> raws = rows; raws = rows.GroupBy(t => t.LabID) .Select(group => group.First()...
dealloc in Swift
...k based observers via the -[NSNotificationCenter addObserverForName:object:queue:usingBlock] method still need to be un-registered when no longer in use since the system still holds a strong reference to these observers. Removing observers (either weakly referenced or zeroing referenced) prematurely...
How to paginate with Mongoose in Node.js?
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?page=0&limit=25 // this would be added onto your URL: http:localhost:5000?page=0&limit=25
Since it would be a String we need to convert it to a Number for our calculations. Let's do it using the parseInt method and let's also provide some default values.
const pageOptions = {
page:...
Stop setInterval call in JavaScript
...d of the task
tickInterval: 5, // run every 5 ticks (5 x interval = 5000 ms)
totalRuns: 10, // run 10 times only. (omit for unlimited times)
callback(task) {
// code to be executed on each run
console.log(task.name + ' task has run ' + task.currentRuns + ' times.'...
When is it appropriate to use UDP instead of TCP? [closed]
...matter, they almost always get through. They just aren't acknowledged and retried after a timeout.
The overhead in negotiating for a TCP socket and handshaking the TCP packets is huge. Really huge. There is no appreciable UDP overhead.
Most importantly, you can easily supplement UDP with some r...
Vim indent xml file
...ated with large XML files and vim, in Sublime they reindents very quickly (5000-10000 lines and base64 data), but in Vim they reindents several minutes. This solution fix problem with large XML files. Again I happy with Vim.
– Sonique
May 17 '15 at 17:33
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Stopping scripters from slamming your website
... final suggestion: when a request for your main page comes in, put it in a queue and respond to the requests in order in a separate process (you may have to hack/extend the web server to do this, but it will likely be worthwhile). If another request from the same IP/agent comes in while the first re...
How to run an application as “run as administrator” from the command prompt? [closed]
I have a batch file called test.bat . I am calling the below instructions in the test.bat file:
3 Answers
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What is the largest TCP/IP network port number allowable for IPv4?
...t shows combined with B)some earlier windows versions only going from 1024-5000 for dynamic ports.And even then, who knows if that ever even happened,since no program has ever bothered to report to anybody that it couldn't get a dynamic port, neither has windows.So it's a thoretical problem not even...