大约有 15,000 项符合查询结果(耗时:0.0239秒) [XML]

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SQL Server: Query fast, but slow from procedure

...: CREATE PROCEDURE GetOrderForCustomers(@CustID varchar(20)) AS BEGIN SELECT * FROM orders WHERE customerid = @CustID END Fast way: CREATE PROCEDURE GetOrderForCustomersWithoutPS(@CustID varchar(20)) AS BEGIN DECLARE @LocCustID varchar(20) SET @LocCustID = @CustID SELEC...
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The type or namespace name 'DbContext' could not be found [closed]

... @Chris Dickinson, right click on the References item in the project and select Add Reference.... Then in the .NET tab, select System.Data.Entity. And if you want to use NuGet, right click on the References item and then select Add Library Package Reference... and in the Online tab, search for Ent...
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A generic list of anonymous class

... okay cool, now we need an example of replacing the new {} lines with a select statement. var list = sourceList.Select( o => new { o.ModelId, ...
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Are there any disadvantages to always using nvarchar(MAX)?

...E @SomeString NVARCHAR(10), @StartTime DATETIME; --===== SELECT @startTime = GETDATE(); SELECT TOP 1000000 @SomeString = 'ABC' FROM master.sys.all_columns ac1, master.sys.all_columns ac2; SELECT testTime='10', Duration = DATEDIFF(ms,@StartTime,GETDATE()); GO --...
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Imply bit with constant 1 or 0 in SQL Server

Is it possible to express 1 or 0 as a bit when used as a field value in a select statement? 8 Answers ...
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How to concatenate strings with padding in sqlite

...qlite-lpad-rpad-function/ -- the statement below is almost the same as -- select lpad(mycolumn,'0',10) from mytable select substr('0000000000' || mycolumn, -10, 10) from mytable -- the statement below is almost the same as -- select rpad(mycolumn,'0',10) from mytable select substr(mycolumn || '0...
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Printing object properties in Powershell

...ete Method void Delete() ... $pool | Select-Object -Property * # You can omit -Property name : .NET v4.5 queueLength : 1000 autoStart : True enable32BitAppOnWin64 : False managedRuntimeVersion ...
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How to hide one item in an Android Spinner

...d spinner widget. This would allow you to simulate a spinner with no items selected, and ensures that the onItemSelected() callback is always called for every item selected (if the hidden item is the "current" one). Normally there is always one item in the spinner that doesn't generate a callback, n...
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Boolean vs boolean in Java

... on 3rd line (bar)?1:0 illustrates that bar (boolean) cannot be implicitly converted (casted) into an int. I am bringing this up not to illustrate the details of implementation behind JVM, but to point out that in terms of low level considerations (as memory size) one does have to prefer values over...
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Complex CSS selector for parent of active child [duplicate]

Is there a way to select a parent element based on the class of a child element in the class? The example that is relevant to me relating to HTML output by a nice menu plugin for http://drupal.org . The output renders like this: ...