大约有 48,000 项符合查询结果(耗时:0.1075秒) [XML]

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What's the better (cleaner) way to ignore output in PowerShell? [closed]

...est 1 (Measure-Command { for ($i = 1; $i -lt 99; $i++) { $GetProcess | Select-Object -Property ProcessName | Out-Null } }).TotalMilliseconds # Batch 2 - Test 2 (Measure-Command { for ($i = 1; $i -lt 99; $i++) { [void]($GetProcess | Select-Object -Property ProcessName ) } }).TotalMillise...
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How can I join multiple SQL tables using the IDs?

... You want something more like this: SELECT TableA.*, TableB.*, TableC.*, TableD.* FROM TableA JOIN TableB ON TableB.aID = TableA.aID JOIN TableC ON TableC.cID = TableB.cID JOIN TableD ON TableD.dID = TableA.dID WHERE DATE(Tab...
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Correct way to pass multiple values for same parameter name in GET request

...s handle forms by default. For example take a look at the form element <select multiple> and how it handles multiple values from this example at w3schools. <form action="/action_page.php"> <select name="cars" multiple> <option value="volvo">Volvo</option> <optio...
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Local and global temporary tables in SQL Server

...varchar(150) ) GO insert into #LocalTemp values ( 1, 'Name','Address'); GO Select * from #LocalTemp The scope of Local temp table exist to the current session of current user means to the current query window. If you will close the current query window or open a new query window and will tr...
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How do I connect to a MySQL Database in Python?

...ueries you need cur = db.cursor() # Use all the SQL you like cur.execute("SELECT * FROM YOUR_TABLE_NAME") # print all the first cell of all the rows for row in cur.fetchall(): print row[0] db.close() Of course, there are thousand of possibilities and options; this is a very basic example. Y...
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How to find Unused Amazon EC2 Security groups

... If you select all of your security groups in the EC2 console, then press actions -> Delete Security Groups, a popup will appear telling you that you cannot delete security groups that are attached to instances, other security gro...
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Find out what process registered a global hotkey? (Windows API)

...sual Studio\2017\Community\Common7\Tools\spyxx_amd64.exe) In the menu bar, select Spy -> Log messages... (or hit Ctrl + M) Check All Windows in System in the Additional Windows frame Switch to the Messages tab Click the Clear All button Select WM_HOTKEY in the listbox, or check Keyboard in Messag...
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How do you move a file?

...files, right-dragged, the regular windows explorer menu came up. It let me select "move" but it wasn't an SVN option so I'm not sure anything even happened. When I checked to see if there were modifications, it said 300 files were deleted and 300 were non-versioned. This doesn't seem like it worked ...
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Targeting .NET Framework 4.5 via Visual Studio 2010

...r (Build -> Configuration Manager) make sure the ".NET 4.5" platform is selected for your project. Still in the configuration manager, create a new solution platform for ".NET 4.5" (you can base it off "Any CPU") and make sure ".NET 4.5" is selected for the solution. Build your project and check ...
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SQL - Update multiple records in one query

...the rows u need using a small script. UPDATE [Table] SET couloumn1= (select couloumn1 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn2= (select couloumn2 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn3= (select couloumn3 FROM Table WHERE IDCouloumn = [PArent ID]), cou...