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Best way to select random rows PostgreSQL
I want a random selection of rows in PostgreSQL, I tried this:
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Will docker container auto sync time with the host machine?
Giving I already changed the timezone of docker container correctly. Do I need to install a NTP server inside the docker container to periodically sync the time or the container will sync the time from its host machine?
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Notepad++ Setting for Disabling Auto-open Previous Files
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How do you do a deep copy of an object in .NET? [duplicate]
I want a true deep copy. In Java, this was easy, but how do you do it in C#?
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Check if string contains only digits
I want to check if a string contains only digits. I used this:
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How to use regex with find command?
...ed with generated uuid1 string. For example 81397018-b84a-11e0-9d2a-001b77dc0bed.jpg. I want to find out all these images using "find" command:
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Cron job every three days
Is it possible to run a cronjob every three days? Or maybe 10 times/month.
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How to replace list item in best way
I have replaced like above. Is there any other bestway to place compare than this one?
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How to write a simple database engine [closed]
... database engine works (i.e. the internals of it). I know most of the basic data structures taught in CS (trees, hash tables, lists, etc.) as well as a pretty good understanding of compiler theory (and have implemented a very simple interpreter) but I don't understand how to go about writing a data...
Do you need to dispose of objects and set them to null?
Do you need to dispose of objects and set them to null, or will the garbage collector clean them up when they go out of scope?
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