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How to make input type= file Should accept only pdf and xls

...input type="file" name="upload" accept="application/pdf,application/vnd.ms-excel" /> To your third question "And when I click the files (PDF/XLS) on webpage it automatically should open.": You can't achieve that. How a PDF or XLS is opened on the client machine is set by the user. ...
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What are some good resources for learning about Artificial Neural Networks? [closed]

...rks for Pattern Recognition. It's fairly old by this stage but is still an excellent resource, and you can often find used copies online for about $30. The neural network chapter in his newer book, Pattern Recognition and Machine Learning, is also quite comprehensive. For a particularly good impleme...
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What's so great about Lisp? [closed]

...ad The Little Schemer and am reading Practical Common Lisp, which are both excellent. Next are the tools. I'm on a Mac, so I've zeroed in on Aquamacs Emacs (makes Emacs livable for a novice) and Steel Bank Common Lisp (SBCL). Lack of libraries. I can't tell for sure yet, but I doubt it. For buil...
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How to export query result to csv in Oracle SQL Developer?

...text editor and save as csv. You might even be able to paste directly into Excel, but I'm not sure about that. – Travis Jan 3 '14 at 20:08  |  ...
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Reading CSV files using C#

... These are the variants I have ran into: quotes are quoted and doubled (excel) i.e. 15" -> field1,"15""",field3 quotes are not changed unless the field is quoted for some other reason. i.e. 15" -> field1,15",fields3 quotes are escaped with \. i.e. 15" -> field1,"15\"",field3 quotes are n...
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Restore the state of std::cout after manipulating it

... Excellent, if someone throws, you still got the correct flags in your stream. – Alexis Wilke Feb 16 '15 at 4:32 ...
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How to get the connection String from a database

... My solution was to use excel (2010). In a new worksheet, select a cell, then: Data -> From Other Sources -> From SQL Server put in the server name, select table, etc, When you get to the "Import Data" dialog, click on Properties...
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Input and Output binary streams using JERSEY?

... I'm using this code to export excel (xlsx) file ( Apache Poi ) in jersey as an attachement. @GET @Path("/{id}/contributions/excel") @Produces("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet") public Response exportExcel(@PathParam("id"...
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What is a columnar database?

..., between a column-store and a row-store. For example, a column store will excel at doing aggregations like totals and averages, but inserting a single row can be expensive, while the inverse holds true for row-stores. This should be apparent from the above diagram. How do they differ from relation...
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Is it feasible to do (serious) web development in Lisp? [closed]

...s -- with success. Most important CL open-source projects in fact do have excellent community support. share | improve this answer | follow | ...