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importing pyspark in python shell
...bject.
Your script can therefore have something like this:
from pyspark.sql import SparkSession
if __name__ == "__main__":
if spark_main_opts:
# Set main options, e.g. "--master local[4]"
os.environ['PYSPARK_SUBMIT_ARGS'] = spark_main_opts + " pyspark-shell"
# Set spark ...
Where does Console.WriteLine go in ASP.NET?
...e a look at this for more info: http://damieng.com/blog/2008/07/30/linq-to-sql-log-to-debug-window-file-memory-or-multiple-writers
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Is there a .NET equivalent to Apache Hadoop? [closed]
...its alternative (Dryad) in favor of Hadoop.
Next year they will release MS SQL Server 2012 with Hadoop integration. Azure and Windows Sever support is being developed even as we speak.
It will be available in the first half in 2012.
Hadoop is the #1 BigData platform and is going to be supported by o...
Should a .sln be committed to source control?
... @Edison: Nope. I'm referring to auto generated source files like LINQ to SQL data context, for instance.
– Mehrdad Afshari
Jun 23 '09 at 17:06
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How to dump a dict to a json file?
...d from here:
http://www.anthonydebarros.com/2012/03/11/generate-json-from-sql-using-python/
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How do I add indices to MySQL tables?
I've got a very large MySQL table with about 150,000 rows of data. Currently, when I try and run
7 Answers
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Calculate date from week number
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@Muflix I don't know enough about SQL and dates/calendars to know - but doing CLR will work.
– Mikael Svenson
Dec 15 '15 at 8:42
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LINQ's Distinct() on a particular property
... Very nice answer! Realllllly helped me in Linq-to-Entities driven from a sql view where I couldn't modify the view. I needed to use FirstOrDefault() rather than First() - all is good.
– Alex KeySmith
May 16 '12 at 14:14
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Show constraints on tables command
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I use
SHOW CREATE TABLE mytable;
This shows you the SQL statement necessary to receate mytable in its current form. You can see all the columns and their types (like DESC) but it also shows you constraint information (and table type, charset, etc.).
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What does LINQ return when the results are empty
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In Linq-to-SQL if you try to get the first element on a query with no results you will get sequence contains no elements error. I can assure you that the mentioned error is not equal to object reference not set to an instance of an obje...