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How to randomly select rows in SQL?
... 2005. In my db, I have a table "customerNames" which has two columns "Id" and "Name" and approx. 1,000 results.
11 Answer...
Getting hold of the outer class object from the inner class object
...esn't want to tell you what its outer instance is, you should respect that and try to design such that you don't need it.
– Jon Skeet
Nov 29 '09 at 19:29
1
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List of macOS text editors and code editors [closed]
I searched for this and found Maudite's question about text editors but they were all for Windows.
39 Answers
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Find in Files: Search all code in Team Foundation Server
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Team Foundation Server 2015 (on-premises) and Visual Studio Team Services (cloud version) include built-in support for searching across all your code and work items.
You can do simple string searches like foo, boolean operations like foo OR bar or more complex langu...
Limitations of Intel Assembly Syntax Compared to AT&T [closed]
... How is AT&T syntax less readable? I find having size suffixes on operands more consise than having "dword". Is there something else I'm missing?
– Hawken
Mar 25 '12 at 14:11
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How can I pad an integer with zeros on the left?
...ring.format(). I'm in the process of doing some performance tuning myself and running the two in Visual VM shows the String.format() method accumulating CPU time at about 3-4 times the rate of DecimalFormat.format().
– Steve Ferguson
May 1 '13 at 17:56
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Does Git publicly expose my e-mail address?
The guides I've read so far on Git say that I should go into the config and specify my name and my e-mail address. They don't elaborate; they just say to do it.
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Calculating a directory's size using Python?
...= os.path.getsize(fp)
return total_size
print(get_size(), 'bytes')
And a oneliner for fun using os.listdir (Does not include sub-directories):
import os
sum(os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f))
Reference:
os.path.getsize - Gives the size in bytes
os.walk
os....
Sorting an array of objects in Ruby by object attribute?
... edited Jan 9 '19 at 20:25
leandrotk
1,22144 gold badges1515 silver badges2626 bronze badges
answered May 20 '09 at 13:55
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
... properly).
Use the second option if you need to ensure data consistency, and each thread needs to have an up-to-date view of the map. Use the first if performance is critical, and each thread only inserts data to the map, with reads happening less frequently.
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