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What is a “cache-friendly” code?
What is the difference between " cache unfriendly code " and the " cache friendly " code?
9 Answers
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
What is meant by nvarchar ?
12 Answers
12
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What is the difference between concurrency and parallelism?
What is the difference between concurrency and parallelism?
37 Answers
37
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How to rename with prefix/suffix?
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What this does not do is work with wild cards. That is, in a directory containing filenames a, b, c, using "echo {,new.}*" yields the list "a b c new.*" (because file name generation via brace expansion occurs before expandi...
What is the “continue” keyword and how does it work in Java?
...word for the first time and I was wondering if someone could explain to me what it does.
13 Answers
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What is thread safe or non-thread safe in PHP?
...P's thread-safety is highly disputed. It's a use-if-you-really-really-know-what-you-are-doing ground.
Final notes
In case you are wondering, my personal advice would be to not use PHP in a multi-threaded environment if you have the choice!
Speaking only of Unix-based environments, I'd say that fo...
Max or Default?
What is the best way to get the Max value from a LINQ query that may return no rows? If I just do
17 Answers
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CSS: 100% font size - 100% of what?
...about percentage-sized vs other-sized fonts. However, I can not find out WHAT the reference of the percent-value is supposed to be. I understand this is 'the same size in all browsers'. I also read this, for instance:
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What does LINQ return when the results are empty
...mpty enumerable. This can happen when you chain them together." -- This is what got me. I had a null returned value that I then fed into another query. This caused the second query to throw no matter what I cast it to because there was no value being fed into the second query.
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T-SQL: Deleting all duplicate rows but keeping one [duplicate]
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You didn't say what version you were using, but in SQL 2005 and above, you can use a common table expression with the OVER Clause. It goes a little something like this:
WITH cte AS (
SELECT[foo], [bar],
row_number() OVER(PARTITION...