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How to truncate milliseconds off of a .NET DateTime
I'm trying to compare a time stamp from an incoming request to a database stored value. SQL Server of course keeps some precision of milliseconds on the time, and when read into a .NET DateTime, it includes those milliseconds. The incoming request to the system, however, does not offer that precisio...
Bash history without line numbers
The bash history command is very cool. I understand why it shows the line numbers, but is there a way I can invoke the history command and suppress the line numbers?
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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one.
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Factors in R: more than an annoyance?
One of the basic data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something.
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Regex select all text between tags
What is the best way to select all the text between 2 tags - ex: the text between all the 'pre' tags on the page.
17 Answe...
Matplotlib scatterplot; colour as a function of a third variable
I want to make a scatterplot (using matplotlib) where the points are shaded according to a third variable. I've got very close with this:
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Passing variable number of arguments around
Say I have a C function which takes a variable number of arguments: How can I call another function which expects a variable number of arguments from inside of it, passing all the arguments that got into the first function?
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Convert a Map to a POJO
I've been looking at Jackson, but is seems I would have to convert the Map to JSON, and then the resulting JSON to the POJO.
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How to get next/previous record in MySQL?
Say I have records with IDs 3,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, that I don't know how to fetch record with nearest higher ID.
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Apache Spark: The number of cores vs. the number of executors
I'm trying to understand the relationship of the number of cores and the number of executors when running a Spark job on YARN.
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