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What is the correct SQL type to store a .Net Timespan with values > 24:00:00?
...tetime or datetimeoffset, that stores the result of first date + timespan. Reading from the db is a matter of TimeSpan x = SecondDate - FirstDate. Using this option will protect you for other non .NET data access libraries access the same data but not understanding TimeSpans; in case you have such a...
Writing to an Excel spreadsheet
I am new to Python. I need to write some data from my program to a spreadsheet. I've searched online and there seem to be many packages available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
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Select first 4 rows of a data.frame in R
... character (matching the respective names):
df[row.index, column.index]
Read help(`[`) for more detail on this subject, and also read about index matrices in the Introduction to R.
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improv...
There is already an open DataReader associated with this Command which must be closed first
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This worked for me. If you want to read more about Enabling Multiple Active Result Sets (MARS) see msdn.microsoft.com/en-us/library/h32h3abf(v=vs.100).aspx. Consider reading up on Disadvantages of MARS too stackoverflow.com/questions/374444/…
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How to explain callbacks in plain english? How are they different from calling one function from ano
...of integer 4 in "a" parameter, the callback_funct will return 6 as result. Read this callbackhell.com best source I found.
– Dung
Nov 1 '17 at 10:03
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Can Json.NET serialize / deserialize to / from a stream?
...no need to vote down, this is correct on older versions).
Use the JsonTextReader class with a StreamReader or use the JsonSerializer overload that takes a StreamReader directly:
var serializer = new JsonSerializer();
serializer.Deserialize(streamReader);
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How to substring in jquery
... sleep. I've cleaned things up here a little. Meanwhile, somebody needs to read this
– BoltClock♦
Jan 24 '13 at 7:21
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Functional design patterns [closed]
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My suggestion is, if you want to learn Scala, to read the book from Paul Chiusano and Runar Bjarnason:
http://manning.com/bjarnason/
Part II: Functional design and combinator libraries
Making little languages
JSON serialization
Specification-based testing
Parsers
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On duplicate key ignore? [duplicate]
...nd You have to take into account potential performance hit. Instead of one read and potential one write You get read, write (delete row), write (insert row) and write(update index), so 1x read and 3x write (at best, if only one index is updated)..
– matt
Oct 18...
Javascript date.getYear() returns 111 in 2011? [duplicate]
...nally (but it has since been updated to use getFullYear()). I would never read w3schools for anything :)
– JK.
Jul 24 '12 at 21:33
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