Index 사용 현황 조회하기.

SELECT i.name, s.*
FROM sys.dm_db_index_usage_stats s inner join sys.indexes i on i.object_id = s.object_id and i.index_id = s.index_id
where s.object_id = Object_id('WACORe_Main.dbo.TB_Main_appointment');

https://blogs.msdn.microsoft.com/sqlserverstorageengine/2007/04/20/how-can-you-tell-if-an-index-is-being-used/

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Oracle NLS_DATE_FORMAT 변경

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Stop console process using Ctrl+C.

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Alternative to IValueConvert, QuickConverter

https://quickconverter.codeplex.com/ Quick Setup Steps Add the assembly reference to your project. This can also easily be done using  the NuGet package . Add the namespaces to Quick Converter that it will need to know about (before any xaml that uses it is loaded). e.g. In your WPF application's App.xaml.cs file: public   partial   class   App  :  Application { public  App() :  base () { // Setup Quick Converter. // Add the System namespace so we can use primitive types (i.e. int, etc.). QuickConverter. EquationTokenizer .AddNamespace( typeof ( object )); // Add the System.Windows namespace so we can use Visibility.Collapsed, etc. QuickConverter. EquationTokenizer .AddNamespace( typeof (System.Windows. Visibility )); } } Add the Quick Converter namespace to your xaml files so you can ref...
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