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Using an RDBMS as event sourcing storage
If I were using an RDBMS (e.g. SQL Server) to store event sourcing data, what might the schema look like?
6 Answers
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
I am doing some numerical optimization on a scientific application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In ...
When to use CouchDB over MongoDB and vice versa
... scenarios for each NoSQL database compared. Quoting the link,
MongoDB: If you need dynamic queries. If you prefer to define indexes, not map/reduce functions. If you need good performance on a big DB. If you wanted CouchDB, but your data changes too much, filling up disks.
CouchDB : For accumula...
Can I initialize a C# attribute with an array or other variable number of arguments?
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Attributes will take an array. Though if you control the attribute, you can also use params instead (which is nicer to consumers, IMO):
class MyCustomAttribute : Attribute {
public int[] Values { get; set; }
public MyCustomAttribute(params int[] values)...
UTF-8 all the way through
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Data Storage:
Specify the utf8mb4 character set on all tables and text columns in your database. This makes MySQL physically store and retrieve values encoded natively in UTF-8. Note that MySQL will implicitly use utf8mb4 encoding if a utf8m...
How to set radio button checked as default in radiogroup?
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or if you don't want to id your RadioButton and you know the index you can use ((RadioButton)radioGroup.getChildAt(INDEX)).setChecked(true);
– Ahmad Kayyali
Apr 29 '13 at 12:32
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Best way to write to the console in PowerShell
...ch exists for the sole reason of outputting text in the host application.
If you want output, then use the Write-* cmdlets. If you want return values from a function, then just dump the objects there without any cmdlet.
sha...
Favourite performance tuning tricks [closed]
...or example, comes with a host of performance monitoring / tuning bits, but if you don't have anything like that (and maybe even if you do) then I would consider the following...
99% of problems I have seen are caused by putting too many tables in a join. The fix for this is to do half the join (wi...
Example of UUID generation using Boost in C++
...s, as it is just important for instances in my program to have unique identifiers. I looked into Boost UUID , but I can't manage to generate the UUID because I don't understand which class and method to use.
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NSOperation vs Grand Central Dispatch
... dependencies between operations. Both very simple with NSOperation, very difficult with GCD.) Apple's done the hard work of leveraging GCD to create a very nice object-friendly API with NSOperation. Take advantage of their work unless you have a reason not to.
Caveat:
On the other hand, if you rea...