大约有 40,000 项符合查询结果(耗时:0.0708秒) [XML]

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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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How can I drop all the tables in a PostgreSQL database?

... You can write a query to generate a SQL script like this: select 'drop table "' || tablename || '" cascade;' from pg_tables; Or: select 'drop table if exists "' || tablename || '" cascade;' from pg_tables; In case some tables are automatically dropped due to cascade option in a...
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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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Set keyboard caret position in html textbox

...tRange(); range.move('character', caretPos); range.select(); } else { if(elem.selectionStart) { elem.focus(); elem.setSelectionRange(caretPos, caretPos); } else elem.focus(); ...
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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 can I resolve “Error: No developer directory found at /Developer”?

... sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer share | improve this answer | follow ...
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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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EF LINQ include multiple and nested entities

...de: Course course = db.Courses .Include(i => i.Modules.Select(s => s.Chapters)) .Include(i => i.Lab) .Single(x => x.Id == id); Your solution fails because Include doesn't take a boolean operator Include(i => i.Modules.Select(s => ...
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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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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 | ...