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When and why are database joins expensive?
I'm doing some research into databases and I'm looking at some limitations of relational DBs.
7 Answers
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Return number of rows affected by UPDATE statements
...to capture the output of INSERTED.* in a table variable or temporary table and count the records. For example,
DECLARE @temp TABLE (
[LockId] [int],
[StartTime] [datetime] NULL,
[EndTime] [datetime] NULL
)
UPDATE test_table
SET StartTime = '2011 JUL 01'
OUTPUT INSERTED.* INTO @temp
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jQuery: select all elements of a given class, except for a particular Id
...tation: All selectors are accepted inside :not(), for example: :not(div a) and :not(div,a) so just use the comma delimited selectors to do multiple (".thisclass:not(#thisid,#thatid)").doAction();
– Chase
Mar 11 '14 at 1:22
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How to “properly” print a list?
... '.join(map(str, mylist))
In Python 3 (where print is a builtin function and not a syntax feature anymore):
mylist = ['x', 3, 'b']
print('[%s]' % ', '.join(map(str, mylist)))
Both return:
[x, 3, b]
This is using the map() function to call str for each element of mylist, creating a new list o...
What is lazy loading in Hibernate?
What is lazy loading in Java? I don't understand the process. Can anybody help me to understand the process of lazy loading?
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Why Java needs Serializable interface?
We work heavily with serialization and having to specify Serializable tag on every object we use is kind of a burden. Especially when it's a 3rd-party class that we can't really change.
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git push fails: RPC failed; result=22, HTTP code = 411
...llowing error git: RPC failed; result=22, HTTP code = 504 in bitbucket on android studio
– DJtiwari
Nov 3 '15 at 9:53
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Accessing attributes from an AngularJS directive
...cause during the linking phase the interpolation hasn't been evaluated yet and so the value is at this time set to undefined.
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What does the caret (‘^’) mean in C++/CLI?
I just came across this code and a few Google searches turn up no explanation of this mysterious (to me) syntax.
7 Answers
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Strip double quotes from a string in .NET
I'm trying to match on some inconsistently formatted HTML and need to strip out some double quotes.
12 Answers
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