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What does tilde-greater-than (~>) mean in Ruby gem dependencies? [duplicate]
...imately greater than! That makes so much sense - ~ to mean "approximately" and > to mean "greater than". I always thought ~> was supposed to look like an arrow, and didn't really understand the particular choice of symbol... breakthrough.
– GMA
Jul 29 '14...
What is resource-ref in web.xml used for?
...reason, you'll need to update all the references in all your applications, and then rebuild and redeploy them.
<resource-ref> introduces another layer of indirection: you specify the name you want to use in the web.xml, and, depending on the container, provide a binding in a container-specifi...
Is the practice of returning a C++ reference variable evil?
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In general, returning a reference is perfectly normal and happens all the time.
If you mean:
int& getInt() {
int i;
return i; // DON'T DO THIS.
}
That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil:
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Rename multiple files based on pattern in Unix
... Didn't even know about rename ... Now I can stop using a for loop with mv and sed ... Thanks!
– balpha
Jul 6 '09 at 11:27
2
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Generate table relationship diagram from existing schema (SQL Server) [closed]
Is there a way to produce a diagram showing existing tables and their relationships given a connection to a database?
9 Ans...
Why is “a” != “a” in C?
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GCC also has the options -fmerge-constants and -fno-merge-constants to enable/disable string and floating-point constant merging across translation units, though on some GCCs it seems that constant merging is always enabled regardless of that option.
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What is MyAssembly.XmlSerializers.dll generated for?
...y *.XmlSerializers.dll is being generated. Why this file is auto generated and what it is used for?
5 Answers
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When would I use Task.Yield()?
I'm using async/await and Task a lot but have never been using Task.Yield() and to be honest even with all the explanations I do not understand why I would need this method.
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How to see query history in SQL Server Management Studio
...ll likely be closed as a duplicate.]
If SQL Server hasn't been restarted (and the plan hasn't been evicted, etc.), you may be able to find the query in the plan cache.
SELECT t.[text]
FROM sys.dm_exec_cached_plans AS p
CROSS APPLY sys.dm_exec_sql_text(p.plan_handle) AS t
WHERE t.[text] LIKE N'%som...
Number of rows affected by an UPDATE in PL/SQL
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And assignment has to precede any COMMITs
– rshdev
Oct 1 '18 at 17:28
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