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No mapping found for field in order to sort on in ElasticSearch

...rrors, but some results), but in my case my search was being issued at the root (no index specified), and the errors I was getting were because the search/order was also looking to a Kibana index. Stupid error, but maybe this'll help someone else who ends up here. ...
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How to run a hello.js file in Node.js on windows?

...ion you'd want to store the executable in a more reasonable place than the root directory and update your PATH to include its location. Download the Windows executable here: http://nodejs.org/#download Copy the file to C:\ Create C:\hello.js Paste in the following content: var http = require...
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Why is std::map implemented as a red-black tree?

...f a new leaf, updating the ancestors of that leaf has to be done up to the root, or up to a point where the two subtrees are of equal depth. The probability of having to update k nodes is 1/3^k. Rebalancing is O(1). Removing an element may imply more than one rebalancing (up to half the depth of the...
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When should I use Memcache instead of Memcached?

...+ front end web servers) and 20+ back end database servers and replicants (mysql & mssql mix), a farm of memcached servers (12 servers in group) supports multiple high volume OLTP applications answering 25K ~ 40K mc->get calls per-second. These calls are those that do NOT have to reach a dat...
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How to get script of SQL Server data? [duplicate]

I'm looking for a way to do something analogous to the MySQL dump from SQL Server. I need to be able to pick the tables and export the schema and the data (or I can export the schema via SQL Server Management Studio and export the data separately somehow). ...
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What are DDL and DML?

... More information see here: MySQL What is DDL, DML and DCL?, the original is as follows: DDL DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database. ...
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What is an .inc and why use it?

...not configured to parse .inc files as php, so if the file sits in your web root and your server is configured in the default way, a user could view your php source code in the .inc file by visiting the URL directly. Its only possible advantage is that it is easy to identify which files are used as ...
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Can we pass parameters to a view in SQL?

... In MySQL you write a stored procedure and have the last statement in the procedure be the resultset you want returned. – bobobobo Jun 6 '13 at 19:23 ...
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Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)

... Apache 2.4.3 - now working with above addition, plus I had the Apache and MySQL services "checked" in the Control Panel which was causing XAMPP CP to stop responding. Unchecked services - Apache ran, but Access Forbidden error. Added the above permissions, and it works now. Thanks!! ...
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How to use PyCharm to debug Scrapy projects

...rfect. make sure the working directory is pointing to your scrapy project root where scrapy.cfg is located. – Nour Wolf Jan 18 '15 at 2:31 3 ...