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JPA EntityManager: Why use persist() over merge()?

... Thus there is no possibility to change operation order for orphanremoval=true? – gstackoverflow Sep 14 '17 at 16:09 ...
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AngularJS : How do I switch views from a controller function?

... In order to switch between different views, you could directly change the window.location (using the $location service!) in index.html file <div ng-controller="Cntrl"> <div ng-click="changeView('edit')"> ...
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Remap values in pandas column with a dict

...ertainly not the most elegant, but this answer deserves some credit. It is orders of magnitude faster for large dictionaries and doesn't use up all of my RAM. It remapped a 10,000 line file using a dictionary that had about 9 million entries in half a minute. The df.replace function, while tidy and ...
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How to open the Chrome Developer Tools in a new window?

...lick and hold the button next to the close button of the Developer Tool in order to reveal the "Undock into separate window" option. Note: A "press" is not enough in that state. share | improve t...
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Catch-22 prevents streamed TCP WCF service securable by WIF; ruining my Christmas, mental health

... First up, let me tell you that what you're trying is impossible2. Now, in order for you to stop spinning your wheels, let me tell you why: It strikes me that you are now wandering in a similar class of problem. If you enable message level security, the client must load the entire stream of data in...
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What is an idempotent operation?

... information, you can PUT the new information as many times as it takes in order to get confirmation from the web service. PUT-ing it a thousand times is the same as PUT-ing it once. Similarly DELETE-ing a REST resource a thousand times is the same as deleting it once. Idempotence thus makes it a...
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JPA: what is the proper pattern for iterating over large result sets?

... not safe if there are new inserts during the batch process. The user must order based on a column where it is sure that newly inserted data will be on the end of the result list. – Balazs Zsoldos Nov 15 '12 at 15:22 ...
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How do I execute any command editing its file (argument) “in place” using bash?

... @patryk.beza: In order: The input FD is opened from the original file; the original directory entry is deleted; the redirection is processed, creating a new empty file with the same name the old one used to have; then the command runs. ...
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What does it mean when a CSS rule is grayed out in Chrome's element inspector?

...erties from rules that are directly applicable to the selected element. In order to additionally display inherited properties, enable the Show inherited checkbox. Such properties will be displayed in a dimmed font. Live example: inspect the element containing the text "Hello, world!" div { ...
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How to install both Python 2.x and Python 3.x in Windows

... be selected when you type python. Consecutive python programs (increasing order that their directories are placed in PATH) will be chosen like so: py -2 for the second python py -3 for the third python etc.. No matter the order of "pythons" you can: run Python 2.x scripts using the command...