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Non-CRUD operations in a RESTful service
...es and every business operation has to be mapped to state CRUD operations. If you need hard business operations semantics, you'll have to go the SOAP way (SOAP is actually message passing, but is typically organized in request-response operations).
– Tomasz Nurkiewicz
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RuntimeException: Unable to instantiate application
... reuse or recycle the previous opened activity/view from the same package (if you haven't closed the previous installed app yet). It has nothing to do with your app, moreover, it is very unlikely that your app will get freezed or crashed cause by this verbose error message on end user's device.
It ...
How to find out what group a given user has?
...y useful as well. It has more verbose output than the 'groups' command, so if you need the group id/user id use this!
– Alex Argo
Dec 8 '08 at 17:02
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ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
...he -f flag, doesn't seem necessary to bypass the remove file confirmation (if the user has it set in the first place)
– pech0rin
Dec 5 '16 at 21:38
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How to perform better document version control on Excel files and SQL schema files
...mmit, Git will figure out everything for you, and you'll be able to see modification dates, checkout specific versions of this file and compare different versions.
The same is true for .xlsx if you decompress them. .xlsx files are zipped up directories of XML files (See How to properly assemble a v...
Using ls to list directories and their total sizes
...dable *
Explanation:
du: Disk Usage
-s: Display a summary for each specified file. (Equivalent to -d 0)
-h: "Human-readable" output. Use unit suffixes: Byte, Kibibyte (KiB), Mebibyte (MiB), Gibibyte (GiB), Tebibyte (TiB) and Pebibyte (PiB). (BASE2)
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
I would like to know what exactly is the difference between querySelector and querySelectorAll against getElementsByClassName and getElementById ?
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How to remove an item for a OR'd enum?
...ssentially reverses or 'flips' all bits for the given data type. As such, if you use the AND operator (&) with some value (let's call that value 'X') and the complement of one or more set bits (let's call those bits Q and their complement ~Q), the statement X & ~Q clears any bits that were ...
how to exclude null values in array_agg like in string_agg using postgres?
If I use array_agg to collect names, I get my names separated by commas, but in case there is a null value, that null is also taken as a name in the aggregate. For example :
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What is the difference between return and return()?
... be in a function, so the function returns the value of the expression, or if there isn't one, undefined.
– RobG
Apr 10 '14 at 13:11
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