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How does comparison operator works with null int?

...e("num1 is greater than or equal to num2"); } else { // This clause is selected, but num1 is not less than num2. Console.WriteLine("num1 >= num2 returned false (but num1 < num2 also is false)"); } if (num1 < num2) { Console.WriteLine("num1 is less than num2"); } else { // T...
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Enable 'xp_cmdshell' SQL Server

...gure calls: declare @prevAdvancedOptions int declare @prevXpCmdshell int select @prevAdvancedOptions = cast(value_in_use as int) from sys.configurations where name = 'show advanced options' select @prevXpCmdshell = cast(value_in_use as int) from sys.configurations where name = 'xp_cmdshell' if (@...
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Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?

...ation Click on Surface Area Configuration for Services and Connections Select the instance that is having a problem > Database Engine > Remote Connections Enable local and remote connections Restart instance You may need to create an exception on the firewall for the SQL Server ...
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Xcode 4.4 error - Timed out waiting for app to launch

... I was trying to debug with a Enterprise Dist cert selected. Switched back to my development cert and the issue was resolved-- thanks! – RyanG Nov 19 '12 at 20:15 ...
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What does the * * CSS selector do?

... Just like any other time you put two selectors one after another (for example li a), you get the descendant combinator. So * * is any element that is a descendant of any other element — in other words, any element that isn't the root element of the whole docum...
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How to differ sessions in browser-tabs?

...of accounts stored in cookies, google mail is just storing all cookies and select one according to the url. – Mhmd Oct 25 '14 at 0:57 5 ...
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Can't execute jar- file: “no main manifest attribute”

...o specify the Application's entry point in eclipse. When you say Export, Select Jar and next [ give it a name in the next window ] and next and next again and you'll see " Select the class of the application entry point". Just pick a class and Eclipse will automatically build a cool MANIFEST....
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MySQL table is marked as crashed and last (automatic?) repair failed

... This was a quick fix! Had a "bad" options table. Make sure that you select the correct database first ! – jyllstuart Jan 10 '19 at 15:54 add a comment ...
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Convert a PHP script into a stand-alone windows executable

...github.com/devsense/phalanger Phalanger is a project which was started at Charles University in Prague and was supported by Microsoft. It compiles source code written in the PHP scripting language into CIL (Common Intermediate Language) byte-code. It handles the beginning of a compiling process whi...
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How to catch SQLServer timeout exceptions

...= sql.CreateCommand(); cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END"; cmd.ExecuteNonQuery(); // This line will timeout. cmd.Dispose(); sql.Close(); } catch (SqlException ex) { if (ex.Number == -2) { Console.WriteLine (...