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How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?

... Which particular version of Ubuntu is this and is this Ubuntu Server Edition? Recent Ubuntu Server Editions (such as 10.04) ship with AppArmor and MySQL's profile might be in enforcing mode by default. You can check this by executing sudo aa-status like so: # sudo a...
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Oracle SQL, concatenate multiple columns + add text

..._desc_column), ' cake with '), t.icing_desc_column), ' and a '), t.fruit_desc_column) Using || example: 'I like ' || t.type_desc_column || ' cake with ' || t.icing_desc_column || ' and a ' || t.fruit_desc_column ...
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Abusing the algebra of algebraic data types - why does this work?

...ely, all unit types. They behave identically under algebraic manipulations and, more importantly, the amount of information present is still preserved. You probably want a zero type as well. Haskell provides that as Void. There are no values whose type is zero, just as there is one value whose type ...
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SQL Server - copy stored procedures from one db to another

I am new to SQL, and what I needed to do was to combine 2 .mdf databases into one. I did that using SQL Server 2008 Manager - Tasks > Import/Export tables.The tables and views were copied successfully, but there are no Stored procedures in the new database. Is there any way to do that? ...
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How to execute XPath one-liners from shell?

Is there a package out there, for Ubuntu and/or CentOS, that has a command-line tool that can execute an XPath one-liner like foo //element@attribute filename.xml or foo //element@attribute < filename.xml and return the results line by line? ...
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How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format

... The ISO C99 standard specifies that these macros must only be defined if explicitly requested. #define __STDC_FORMAT_MACROS #include <inttypes.h> ... now PRIu64 will work ...
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What is a sealed trait?

...only extended in a single file, the compiler knows every possible subtypes and can reason about it. For instance with the declaration: sealed trait Answer case object Yes extends Answer case object No extends Answer The compiler will emit a warning if a match is not exhaustive: scala> val x:...
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Is there a wikipedia API just for retrieve content summary?

...lagship site of the Stack Exchange Network, created in 2008 by Jeff Atwood and Joel Spolsky, as a more open alternative to earlier Q&A sites such as Experts Exchange. The name for the website was chosen by voting in April 2008 by readers of Coding Horror, Atwood's popular programming blog.\nIt f...
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When should you use constexpr capability in C++11?

...hat can be evaluated down to a constant while maintaining good readability and allowing slightly more complex processing than just setting a constant to a number. It basically provides a good aid to maintainability as it becomes more obvious what you are doing. Take max( a, b ) for example: templat...
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how to get GET and POST variables with JQuery?

How do I simply get GET and POST values with JQuery? 14 Answers 14 ...