大约有 45,000 项符合查询结果(耗时:0.0392秒) [XML]

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How to make all Objects in AWS S3 bucket public by default?

...n.s3.amazonaws.com/policygen.html Fill in the details such as: In Action select "GetObject" Select "Add Statement" Then select "Generate Policy" Copy the text example: { "Id": "Policy1397632521960", "Statement": [ { "Sid": "Stmt1397633323327", "Action": [ "s3:GetObjec...
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How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails

... write a plugin that would do something like: SampleModel.find(:all, :select => "DISTINCT(*)", :conditions => ["date > #{self.date}"], :limit => 1, :order => 'date', :group => "date").show_generated_sql and have this call the construct_finder_sql method. ...
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What does git rev-parse do?

... in plumbing commands as short for "revision" and generally meaning the 40-character SHA1 hash for a commit. The command rev-list for example prints a list of 40-char commit hashes for a branch or whatever. In this case the name might be expanded to parse-a-commitish-to-a-full-SHA1-hash. While the ...
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android get real path by Uri.getPath()

... This is what I do: Uri selectedImageURI = data.getData(); imageFile = new File(getRealPathFromURI(selectedImageURI)); and: private String getRealPathFromURI(Uri contentURI) { String result; Cursor cursor = getContentResolver().query(cont...
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Query an XDocument for elements by name at any depth

...n TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" ) select AnyElement; ResultsTxt.AppendText( TheElements1.Count().ToString() ); //Example 2: var TheElements2 = from AnyElement in TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" ) where AnyE...
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How to find SQL Server running port?

... This is the one that works for me: SELECT DISTINCT local_tcp_port FROM sys.dm_exec_connections WHERE local_tcp_port IS NOT NULL share | improve this ...
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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?

...oding. It's a way of representing binary data using only printable (text) characters. See this paragraph from the wikipedia page for HTTP Basic Authentication: While encoding the user name and password with the Base64 algorithm typically makes them unreadable by the naked eye, they are as easi...
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Surrogate vs. natural/business keys [closed]

...ot more tables into your query than should really be necessary. Compare: select sum(t.hours) from timesheets t where t.dept_code = 'HR' and t.status = 'VALID' and t.project_code = 'MYPROJECT' and t.task = 'BUILD'; against: select sum(t.hours) from timesheets t join departents d on d.dept_i...
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Setting JDK in Eclipse

...roperties the "JRE System Library" was still there. When I deleted it and selected "Use default Workspace JRE" only then did it pick up my change. I would have thought Eclipse should have updated my projects JRE when I selected a different JRE for my workspace – MayoMan ...
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How do I test which class an object is in Objective-C?

...objective-c runtime api: #import <objc/runtime.h> /* ... */ const char* className = class_getName([yourObject class]); NSLog(@"yourObject is a: %s", className); EDIT: In Swift if touch.view is UIPickerView { // touch.view is of type UIPickerView } ...