大约有 42,000 项符合查询结果(耗时:0.0273秒) [XML]

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How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]

...it to a clob using RTRIM,XMLAGG,XMLELEMENT, and GETCLOBVAL(), which I then cast back to VARCHAR2. However, the run time for the query turns into hours rather than 15 minutes. Do you have any recommendations of other approaches? Also, I saw a suggestion for creating a custom function instead. ...
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T-SQL query to show table definition?

... DriAll = true }) .Cast<string>() .Select(s => s + "\n" + "GO") .ToList() .ForEach(Console.WriteLine); } } } ...
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How to use find command to find all files with extensions from list?

...gif|png|jpeg)" > log The -E saves you from having to escape the parens and pipes in your regex. share | improve this answer | follow | ...
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Run a string as a command within a Bash script

... ./me casts raise_dead() I was looking for something like this, but I also needed to reuse the same string minus two parameters so I ended up with something like: my_exe () { mysql -sN -e "select $1 from heat.stack where heat...
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Remove last character from string. Swift language

... In Swift 2.0 for have to properly cast the result expression = String(expression.characters.dropLast()) if you want it back as a String – cromanelli Sep 18 '15 at 18:57 ...
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Linux delete file with size 0 [duplicate]

... This will delete all the files in a directory (and below) that are size zero. find /tmp -size 0 -print -delete If you just want a particular file; if [ ! -s /tmp/foo ] ; then rm /tmp/foo fi ...
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How Can I Download a File from EC2 [closed]

...ome Web server on your instance, configure HTTPS if your file is sensitive and then download using your browser, here are some tutorials: http://flurdy.com/docs/ec2/apache_tomcat/ http://www.robotmedia.net/2011/04/how-to-create-an-amazon-ec2-instance-with-apache-php-and-mysql-lamp/ ...
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How can I make an EXE file from a Python program? [duplicate]

...A .py to .exe converter using a simple graphical interface built using Eel and PyInstaller in Python. py2exe is probably what you want, but it only works on Windows. PyInstaller works on Windows and Linux. Py2app works on the Mac. ...
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What exactly does stringstream do?

I am trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0. I tried inputting 5.5 and 6 and the output...
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Key existence check in HashMap

... 1+ for primitive types as value unnecessary cast is not required using this answer – Prashant Bhanarkar Sep 23 '16 at 9:53 ...