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Difference between timestamps with/without time zone in PostgreSQL

...g to the process of inserting/retrieving values. But readers should understand that both data types, timestamp with time zone and timestamp without time zone, in Postgres do *not actually store time zone information. You can confirm this with a glance at the data type doc page: Both types takes up t...
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How to import a jar in Eclipse

...igure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. A quick demo here. The above solution is obviously a "Quick" one. However, if you are working on a project where you need to commit files to the source control repository, I would recommend adding Jar fil...
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Objective-C categories in static library

...pp project as direct dependency (target -> general -> direct dependencies) and all works OK, but categories. A category defined in static library is not working in app. ...
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Optimise PostgreSQL for fast testing

.... For example, PostgreSQL 9.2 significantly improves the speed of TRUNCATE and of course adds index-only scans. Even minor releases should always be followed; see the version policy. Don'ts Do NOT put a tablespace on a RAMdisk or other non-durable storage. If you lose a tablespace the whole datab...
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How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio

... SSMS only allows unlimited data for XML data. This is not the default and needs to be set in the options. One trick which might work in quite limited circumstances is simply naming the column in a special manner as below so it gets treated as XML data. DECLARE @S varchar(max) = 'A' SET @S ...
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Difference between require, include, require_once and include_once?

... There are require and include_once as well. So your question should be... When should I use require vs. include? When should I use require_once vs. require The answer to 1 is described here. The require() function is identical to inc...
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What do ellipsis […] mean in a list?

...inside itself, which can not be printed. p contains p which contains p ... and so on. The [...] notation is a way to let you know this, and to inform that it can't be represented! Take a look at @6502's answer to see a nice picture showing what's happening. Now, regarding the three new items after ...
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“Cloning” row or column vectors

... into a 2D array with length 1 in the first axis (vertical on your screen) and length 3 in the second axis (horizontal on your screen). Transposing then makes it have length 3 in the first axis and length 1 in the second axis. A tile shape of (1, 3) copies this column over three times, which is why ...
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What is “assert” in JavaScript?

...ssertions (as they're called) are used only in "testing" or "debug" builds and stripped out of production code. Suppose you had a function that was supposed to always accept a string. You'd want to know if someone called that function with something that wasn't a string. So you might do: assert(ty...
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Should I use PATCH or PUT in my REST API?

... the one thing to toggle, completely replacing it is not such a huge deal. And it does allow for a (insignificantly) smaller request. – thecoshman Jun 17 '14 at 13:04 37 ...