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Cause of a process being a deadlock victim
...e in the select statement is causing the slow lookup time. Can I create an index based on this field? Is it advisable?
Probably. The cause of the deadlock is almost very likely to be a poorly indexed database.10 minutes queries are acceptable in such narrow conditions, that I'm 100% certain in you...
Argmax of numpy array returning non-flat indices
...
You could use numpy.unravel_index() on the result of numpy.argmax():
>>> a = numpy.random.random((10, 10))
>>> numpy.unravel_index(a.argmax(), a.shape)
(6, 7)
>>> a[6, 7] == a.max()
True
...
JSON, REST, SOAP, WSDL, and SOA: How do they all link together
...ntly doing some exams and I'm struggling through some concepts. These have all been 'mentioned' in my notes really but I didn't really understand how they all linked together. As far as my understanding is:
...
Deleting array elements in JavaScript - delete vs splice
...
delete will delete the object property, but will not reindex the array or update its length. This makes it appears as if it is undefined:
> myArray = ['a', 'b', 'c', 'd']
["a", "b", "c", "d"]
> delete myArray[0]
true
> myArray[0]
undefined
Note that it is not in...
Quicksort: Choosing the pivot
... asserted:
'Median of 3' is NOT first last middle. Choose three random indexes, and take the middle value of this. The whole point is to make sure that your choice of pivots is not deterministic - if it is, worst case data can be quite easily generated.
To which I responded:
Analysis Of Hoar...
What is the most ridiculous pessimization you've seen? [closed]
... databases by (division/customer/product/etc.)
Resist adding columns to an index because it makes it too big.
Create lots of summary tables because recalculating from raw data is too slow.
Create columns with subfields to save space.
Denormalize into fields-as-an-array.
That's off the top of my he...
Looping over a list in Python
...only be 10 elements because we are starting our for loop from element with index 1 in list1 not from element with index 0 in list1
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git: Show index diff in commit message as comment
...t;..." to unstage)
#
# modified: README
#
diff --git a/README b/README
index af5626b..c62237e 100644
--- a/README
+++ b/README
@@ -1 +1 @@
-Hello, world!
+Goodbye, world!
(note the lack of # preceding the diff lines)
And then the actual commit message:
$ git log -n 1
commit ad21a2655ef6d8173...
How to design a product table for many kinds of product where each product has many parameters
...e blob back to the application and sort it out there." You can even create indexes on XML columns in SQL Server.
– Delphi.Boy
Oct 2 '14 at 6:48
...
What is size_t in C?
...size_t.
As an implication, size_t is a type guaranteed to hold any array index.
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