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MySQL - Rows to Columns

...ve this problem. I apologize if it's too long. I'll start out with the base you've given and use it to define a couple of terms that I'll use for the rest of this post. This will be the base table: select * from history; +--------+----------+-----------+ | hostid | itemname | itemvalue | +---...
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String.format() to format double in java

... Yes, Matt is right. %1, %2 and so on can be used to re-order the output based on the index of your input arguments. See this. You can omit the index and the default order will be assumed by the formatter. – praneetloke May 14 '16 at 16:06 ...
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How to fix the flickering in User controls

...otected override CreateParams CreateParams { get { CreateParams cp = base.CreateParams; cp.ExStyle |= 0x02000000; // Turn on WS_EX_COMPOSITED return cp; } } There are many things you can do to improve painting speed, to the point that the flicker isn't noticeable anymore. Start ...
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Can I set enum start value in Java?

... Based on your statement, would the best practice using java to create a enum of sequential integers (similar to a C++ enum), for an index into an array or something, be to write: enum Ids { NAME(0), AGE(1), HEIGHT(2), WEIGHT...
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When to make a type non-movable in C++11?

...nyway. Reference-like types that exist in inheritance hierarchies, such as base classes and classes with virtual or protected member functions. These are normally held by pointer or reference, often a base* or base&, and so do not provide copy construction to avoid slicing; if you do want to get...
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How do you attach a new pull request to an existing issue on github?

...request POST \ --data '{"issue": 15, "head": "smparkes:synchrony", "base": "master"}' \ https://api.github.com/repos/technoweenie/faraday/pulls This creates a pull request: ask technoweenie at project faraday (https://api.github.com/repos/technoweenie/faraday/pulls) to pull from th...
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JavaScript inheritance: Object.create vs new

...ame thing, It's not true at all, because Your first example function SomeBaseClass(){...} SomeBaseClass.prototype = { doThis : function(){...}, doThat : function(){...} } function MyClass(){...} MyClass.prototype = Object.create(SomeBaseClass.prototype); In this example, you are just inh...
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What is the difference between require_relative and require in Ruby?

...relative: VALUE rb_f_require_relative(VALUE obj, VALUE fname) { VALUE base = rb_current_realfilepath(); if (NIL_P(base)) { rb_loaderror("cannot infer basepath"); } base = rb_file_dirname(base); return rb_require_safe(rb_file_absolute_path(fname, base), rb_safe_level()); ...
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Git-Based Source Control in the Enterprise: Suggested Tools and Practices?

...ar that you think your current process will end up with a maintainable codebase. Invest some time into Continous Integration. As I outlined above, regardless which kind of VCS you use, there's never a replacement for CI. You stated that there are people who push crap into the master repo: Have them ...
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What is SaaS, PaaS and IaaS? With examples

...nd other resources like virtual-machine disk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc. Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine. PaaS (Platform as a Service), as the name suggests, provides yo...