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How SID is different from Service name in Oracle tnsnames.ora

...e as SID and you can also give it any other name you want. SERVICE_NAME is the new feature from oracle 8i onwards in which database can register itself with listener. If database is registered with listener in this way then you can use SERVICE_NAME parameter in tnsnames.ora othe...
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How to properly seed random number generator

... a set of distinct and deterministic random sequences). import ( crypto_rand "crypto/rand" "encoding/binary" math_rand "math/rand" ) func init() { var b [8]byte _, err := crypto_rand.Read(b[:]) if err != nil { panic("cannot seed math/rand package with cryptographical...
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Is 1.0 a valid output from std::generate_canonical?

...pen interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this. 3 Answers ...
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Easy way to test a URL for 404 in PHP?

... you are using PHP's curl bindings, you can check the error code using curl_getinfo as such: $handle = curl_init($url); curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE); /* Get the HTML or whatever is linked in $url. */ $response = curl_exec($handle); /* Check for 404 (file not found). */ $htt...
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How to change the default GCC compiler in Ubuntu?

...l uses g++-7 standard libraries, and now i'm getting errors with undefined __builtin stuff. – Youda008 May 1 '19 at 8:17 add a comment  |  ...
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Xcode 4 - “Archive” is greyed out?

...on/ToolsLanguages/Conceptual/Xcode4UserGuide/DistApps/DistApps.html#//apple_ref/doc/uid/TP40010215-CH11-DontLinkElementID_69 But I still can't get the actual archives to show up in Organizer (even though the files exist) sh...
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EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?

...low. try { byte[] bytes = System.IO.File.ReadAllBytes(@"C:\Users\sheph_000\Desktop\Rawr.png"); Console.WriteLine(bytes); context.BeverageTypes.AddOrUpdate( x => x.Name, new AATPos.DAL.Entities.BeverageType { ID = 1, Name = "Sodas" } ); context.Beverages....
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How to generate a random int in C?

... int r = rand(); // Returns a pseudo-random integer between 0 and RAND_MAX. Edit: On Linux, you might prefer to use random and srandom. share | improve this answer | f...
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What's the u prefix in a Python string?

... 3.0-3.2 will break. Because you need to decide if you care to use six.text_type() everywhere for the (hopefully miniscule) number of people still using 3.[012] - at least the information is there so you can choose. – dwanderson Aug 22 '18 at 0:31 ...
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Add a CSS class to

... <%= f.submit 'name of button here', :class => 'submit_class_name_here' %> This should do. If you're getting an error, chances are that you're not supplying the name. Alternatively, you can style the button without a class: form#form_id_here input[type=submit] Try that,...