大约有 47,000 项符合查询结果(耗时:0.0408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 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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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 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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Rails filtering array of objects by attribute value

... Try : This is fine : @logos = @attachments.select { |attachment| attachment.file_type == 'logo' } @images = @attachments.select { |attachment| attachment.file_type == 'image' } but for performance wise you don't need to iterate @attachments twice : @logos , @images...
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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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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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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...
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How does Google's Page Speed lossless image compression work?

...om build tool which compresses images with both optipng and pngcrush, then selects the smaller file. Still, Page Speed complains about non-optimal images. So which tool do they really use? – user123444555621 Sep 10 '12 at 7:42 ...
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Getting raw SQL query string from PDO prepared statements

...the principle is the same. 081016 16:51:28 2 Query prepare s1 from 'select * from foo where i = ?' 2 Prepare [2] select * from foo where i = ? 081016 16:51:39 2 Query set @a =1 081016 16:51:47 2 Query execute s1 using @a 2 Execute [2] select...