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What is SQL injection? [duplicate]

...sult of queries, reading data or even changing data that they shouldn't be allowed to do. Example in PHP: $password = $_POST['password']; $id = $_POST['id']; $sql = "UPDATE Accounts SET PASSWORD = '$password' WHERE account_id = $id"; Now suppose the attacker sets the POST request parameters to "...
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find -exec a shell function in Linux?

... Note also that any functions your function might be calling will not be available unless you export -f those as well. – hraban Jan 29 '16 at 14:14 5 ...
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Get last result in interactive Python shell

... Underscore. >>> 5+5 10 >>> _ 10 >>> _ + 5 15 >>> _ 15 share | improve this answer | follow |...
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What is Node.js? [closed]

I don't fully get what Node.js is all about. Maybe it's because I am mainly a web based business application developer. What is it and what is the use of it? ...
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Javascript replace with reference to matched group?

I have a string, such as hello _there_ . I'd like to replace the two underscores with <div> and </div> respectively, using JavaScript . The output would (therefore) look like hello <div>there</div> . The string might contain multiple pairs of underscores. ...
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Python integer incrementing with ++ [duplicate]

...I've looked back at my VB6 days and thought, "What modern language doesn't allow incrementing with double plus signs?": 7 A...
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Dictionary returning a default value if the key does not exist [duplicate]

...Value(key, out value); and just ignore the return value. However, that really will just return default(TValue), not some custom default value (nor, more usefully, the result of executing a delegate). There's nothing more powerful built into the framework. I would suggest two extension methods: pu...
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what is .netrwhist?

...riting files across networks. .netrwhist is a history file which maintains all the directories that were modified. So whenever you modify the contents of ~/.vim it adds one entry in .netrwhist A sample .netrwhist is as shown let g:netrw_dirhistmax =10 let g:netrw_dirhist_cnt =6 let g:netrw_dirhis...
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Eclipse hangs on loading workbench

... DISCLAIMER: THIS WILL DELETE ALL OF YOUR ECLIPSE WORKSPACE SETTINGS AND YOU WILL HAVE TO RE-IMPORT ALL YOUR PROJECTS, THERE ARE LESS DESTRUCTIVE ANSWERS HERE Try the following: Delete the .metadata folder in your local workspace (this is what worked f...
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How do you convert a byte array to a hexadecimal string, and vice versa?

... You're using SubString. Doesn't this loop allocate a horrible amount of string objects? – Wim Coenen Mar 6 '09 at 16:36 30 ...