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How do you create a Distinct query in HQL
...ll just pull the data from the database to the memory with repetitions and all, and then discard the repetitions afterwards; depending on how often the data repeats, that can increase the I/O operations quite a lot.
– Haroldo_OK
Jan 21 '19 at 11:49
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What is the difference between include and extend in Ruby?
...end Mod. In this case the individual object gets Mod's methods even though all other objects with the same class as o do not.
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What is cardinality in MySQL?
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Max cardinality: All values are unique
Min cardinality: All values are the same
Some columns are called high-cardinality columns because they have constraints in place (like unique) prohibiting you from putting the same value in every row. ...
Install a Windows service using a Windows command prompt?
I want to install a Windows service using a Windows command prompt (not the Visual Studio command prompt).
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How to reset AUTO_INCREMENT in MySQL?
...MySQL AutoIncrement using a MAX value from another table? on how to dynamically get an acceptable value.
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Forward host port to docker container
...e to run a process in a Docker container to listen to the queue and (optionally) write to the database.
5 Answers
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Replacing a fragment with another fragment inside activity group
...need to replace a fragment with another, you should have added them dynamically, first of all.
Note: R.id.fragment_container is a layout or container of your choice in the activity you are bringing the fragment to.
// Create new fragment and transaction
Fragment newFragment = new ExampleFragment(...
Serializing an object as UTF-8 XML in .NET
...o a string again, so its no longer in UTF-8, but back in UTF-16 (though ideally its best to consider strings at a higher level than any encoding, except when forced to do so).
To get the actual UTF-8 octets you could use:
var serializer = new XmlSerializer(typeof(SomeSerializableObject));
var mem...
How should one go about choosing a default TCP/IP port for a new service?
...d one go about selecting a default port? Assume that this app will be installed on many computers, and that avoiding port conflicts is desired.
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How can I reload .emacs after changing it?
How can I get Emacs to reload all my definitions that I have updated in .emacs without restarting Emacs?
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