大约有 40,000 项符合查询结果(耗时:0.0366秒) [XML]

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how to convert a string to date in mysql?

I have a string column which acts as a date and I want to select it as a date . 5 Answers ...
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Is it possible to Pivot data using LINQ?

...t = GetCustData(); var query = myList .GroupBy(c => c.CustId) .Select(g => new { CustId = g.Key, Jan = g.Where(c => c.OrderDate.Month == 1).Sum(c => c.Qty), Feb = g.Where(c => c.OrderDate.Month == 2).Sum(c => c.Qty), March = g.Where(c => ...
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How to get an object's property's value by property name?

... Sure write-host ($obj | Select -ExpandProperty "SomeProp") Or for that matter: $obj."SomeProp" share | improve this answer | ...
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Install .ipa to iPad with or without iTunes

... In Xcode 5 open the organizer (Window > Organizer) and select "Devices" at the top. Your plugged in device should show up on the left hand side. Drag the IPA file over to that device. In Xcode 6 and Xcode 7 open Devices (Window > Devices). Again your device should show up in ...
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SQL Server : GROUP BY clause to get comma-separated values [duplicate]

... try this: SELECT ReportId, Email = STUFF((SELECT ', ' + Email FROM your_table b WHERE b.ReportId = a.ReportId FOR XML PATH('')), 1, 2, '') FROM your_table a GROUP BY ReportId SQL fiddle demo ...
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Extracting hours from a DateTime (SQL Server 2005)

... SELECT DATEPART(HOUR, GETDATE()); DATEPART documentation share | improve this answer | follow ...
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Is the NOLOCK (Sql Server hint) bad practice?

... With NOLOCK hint, the transaction isolation level for the SELECT statement is READ UNCOMMITTED. This means that the query may see dirty and inconsistent data. This is not a good idea to apply as a rule. Even if this dirty read behavior is OK for your mission critical web based app...
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Build an iOS app without owning a mac? [closed]

...r virtual machine (the name is unimportant, I called it "Mac"). In "Type", select "Mac OS X" and in "Version" select "macOS 10.13 High Sierra (64 bit)" (the Mac version you will install on the virtual machine is actually Catalina, but VirtualBox doesn't have that option yet and it works just fine if...
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Copying text with color from Notepad++

... In NPP v6.7.7 you can do this by selecting your text, right clicking on it, select "Plugin commands" and then "Copy text with syntax highlighting". share | ...
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Renaming projects in Xcode 4

...matically change all project-name-related entries and will allow you to de-select some of them if you want. Nice. share | improve this answer | follow | ...