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What is float in Java?
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MongoDB aggregation framework match OR
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@PaulShapiro: I hope you did not down voted because of this. For all please consider commenting the reason before down-voting it helps everyone. Here is the reference Boolean Aggregation Operators -> $or
– Amol M Kulkarni
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What is RPC framework and Apache Thrift?
...ws machine. The code for both server and client is generated from a Thrift IDL file. To get it running, you basically have to add only the intended program logic and put all the pieces together.
The single best reference for Apache Thrift is still the Apache Thrift Whitepaper. Although slightly out...
Remove data.frame row names when using xtable
OK, I admit this one is a bit uptight (read: "stupid"), and I assume it's quite easy too. I'm writing a report and I want to use xtable package for LaTeX table generation (note that memisc package does the job, but say I want to do this solely with xtable ).
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Coredata Error “data: ”
...n in the logs.
This seems to be such a common misunderstanding that I decided to write about it, here.
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Calculate a percent with SCSS/SASS
I want to set a width in percentage in scss via calculation, but it gives me errors..
3 Answers
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What are the differences between a clustered and a non-clustered index?
...clustered indexes should be set on a field that is normally incremental ie Id or Timestamp.
SQL Server will normally only use an index if its selectivity is above 95%.
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What is lazy loading in Hibernate?
...dren when you access the collection. Instead, it will load each child individually. When iterating over the collection, this causes a query for every child. In order to avoid this, you can trick hibernate into loading all children simultaneously, e.g. by calling parent.getChildren().size().
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Check whether HTML element has scrollbars
...e a couple of weeks ago. It worked for me.
var div = document.getElementById('container_div_id');
var hasHorizontalScrollbar = div.scrollWidth > div.clientWidth;
var hasVerticalScrollbar = div.scrollHeight > div.clientHeight;
/* you'll get true/false */
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Does application.yml support environment variables?
... unix cli when starting the application? I know we can use -D to pass override parameters, but does that also work for env variables? Ex.: nohup java -Xmx1024m -jar -Dspring.profiles.active="whatever". Is there a way to do that with env vars?
– Igor Donin
Feb 1...