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Change C++/CLI project to another framework than 4.0 with vs2010

... the Platform Toolset setting in the General property page. You must then select "v90" to get a proper build that targets 3.5. It is however clumsy, you must have all intermediate versions of VS installed on the machine to have that selection available. Why you need VS2008 installed requires an e...
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Update or Insert (multiple rows and columns) from subquery in PostgreSQL

...table.col1 = 123; For the INSERT Use: INSERT INTO table1 (col1, col2) SELECT col1, col2 FROM othertable You don't need the VALUES syntax if you are using a SELECT to populate the INSERT values. share | ...
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How to get element by innerText

... This should be the top answer. XPath can do much more, like select node by attribute value, select node sets ... Simple intro: w3schools.com/xml/xpath_syntax.asp – Timathon Dec 2 '17 at 2:43 ...
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How to pull a random record using Django's ORM?

...on't know about other databases). order_by('?')[:N] will be translated to SELECT ... FROM ... WHERE ... ORDER BY RAND() LIMIT N query. It means that for every row in table the RAND() function will be executed, then the whole table will be sorted according to value of this function and then first N...
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Tree view of a directory/folder in Windows? [closed]

...all descending files & folders. In File Explorer under Windows 8.1: Select folder Press Shift, right-click mouse, and select "Open command window here" Type tree /f > tree.txt and press Enter Use MS Word to open "tree.txt" The dialog box "File Conversion - tree.txt" will open For "Text enc...
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How to get the system uptime in Windows? [closed]

...can also click CTRL+SHIFT+ESC to get to the Task Manager. In Task Manager, select the Performance tab. The current system uptime is shown under System or Performance ⇒ CPU for Win 8/10. 2: By using the System Information Utility The systeminfo command line utility checks and displays various ...
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Use '=' or LIKE to compare strings in SQL?

... To see the performance difference, try this: SELECT count(*) FROM master..sysobjects as A JOIN tempdb..sysobjects as B on A.name = B.name SELECT count(*) FROM master..sysobjects as A JOIN tempdb..sysobjects as B on A.name LIKE B.name Comparing strings with '=' is muc...
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Quicksort: Choosing the pivot

...states "Hoare suggested partitioning around the median of several randomly selected lines. Sedgewick [...] recommended choosing the median of the first [...] last [...] and middle". This indicates that both techniques for 'median-of-three' are known in the literature. (Update 2014-11-23: The articl...
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How can I clone an SQL Server database on the same server in SQL Server 2008 Express?

...is optional. Click to clone database and open restore dialog (see image) Select Device and add the backup file from step 3. Change destination to test database Change location of database files, it must be different from the original. You can type directly into text box, just add postfix. (NOTE:...
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JQuery .each() backwards

I'm using JQuery to select some elements on a page and then move them around in the DOM. The problem I'm having is I need to select all the elements in the reverse order that JQuery naturally wants to select them. For example: ...