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How do you use variables in a simple PostgreSQL script?

... This doesn't answer the question at all. In MS SQL you can define a var in a query and use it right there, in the same tool. I don't get why people keep proposing this as an answer, in every version of this question. – stone ...
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How to write :hover condition for a:before and a:after?

... This depends on what you're actually trying to do. If you simply wish to apply styles to a :before pseudo-element when the a element matches a pseudo-class, you need to write a:hover:before or a:visited:before instead. Notice the pseudo-element comes after ...
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How do I install Maven with Yum?

...b/apache/maven/maven-3/3.0.5/binaries/apache-maven-3.0.5-bin.tar.gz basically just go to the maven site. Find the version of maven you want. The file type and use the mirror for the wget statement above. Afterwards the process is easy Run the wget command from the dir you want to extract maven ...
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Difference between filter and filter_by in SQLAlchemy

... filter on users.id. Instead, it will evaluate id == id as True and return all users. You need to use .filter(users.id == id) (as demoed above). I made this mistake earlier today. – Nico Cernek Feb 22 '19 at 23:00 ...
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file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON

file_get_contents("php://input") or $HTTP_RAW_POST_DATA - which one is better to get the body of JSON request? 6 Answers...
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Automatically add all files in a folder to a target using CMake?

... An alternative to manually re-running cmake is to touch the CMakeLists.txt file before running make. – Seamus Connor Oct 1 '15 at 16:38 ...
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AngularJS Multiple ng-app within a page

... So basically as mentioned by Cherniv we need to bootstrap the modules to have multiple ng-app within the same page. Many thanks for all the inputs. var shoppingCartModule = angular.module("shoppingCart", []) shoppingCartModule...
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How do I get jQuery to select elements with a . (period) in their ID?

... For that reason, in CSS itself, you must escape a dot in an ID, too. All jQuery is doing is requiring you to follow the rules set out by CSS. – bdukes Apr 6 '09 at 14:11 6 ...
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How do I set the timeout for a JAX-WS webservice client?

...es this down. I'm not sure why you would want to download the WSDL dynamically but the system properties: sun.net.client.defaultConnectTimeout (default: -1 (forever)) sun.net.client.defaultReadTimeout (default: -1 (forever)) should apply to all reads and connects using HttpURLConnection which J...
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Change Oracle port from port 8080

... Production on Tue Aug 26 10:40:44 2008 Copyright (c) 1982, 2005, Oracle. All rights reserved. SQL> connect Enter user-name: system Enter password: <enter password if will not be visible> Connected. SQL> Exec DBMS_XDB.SETHTTPPORT(3010); [Assuming you want to have HTTP going to this po...