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When do I need to use a semicolon vs a slash in Oracle SQL?
...one) tool to execute SQL scripts - and the "correctness" of a script is validated using that tool. Similar to having one compiler for your programming language or one specific version of your runtime environment (Java 7, .Net 4.0, PHP 5.x, ...)
– a_horse_with_no_name
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using gitignore to ignore (but not delete) files
...ing your changes will apply the removal. I don't think there's a way to avoid that from your own repository. You must do something on the other repositories, or accept the files will be removed.
To prevent the removal on each other repository you can:
(obviously) backup the files somewhere, pull ...
Python - write() versus writelines() and concatenated strings
...e a string for a newline in write() but I can use it in writelines()?
The idea is the following: if you want to write a single string you can do this with write(). If you have a sequence of strings you can write them all using writelines().
write(arg) expects a string as argument and writes it to ...
What's the difference between an exclusive lock and a shared lock?
...ad threads to wait when write thread is started waiting? Because how to avoid starvation of write thread because of continuous read request?
– Kanagavelu Sugumar
Jun 22 '16 at 12:31
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What is the difference between encode/decode?
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@hop: yes. To detect invalid input and for Python 2/3 compatibility, the string can be encoded explicitly using ascii encoding: \\u0203\u00e4'.encode('ascii').decode('unicode-escape')
– jfs
Jun 30 '15 at 18:39
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Difference between size_t and std::size_t
...ence. I still think your first comment is too strong though; as you just said, ::size_t is present e.g in <stddef.h>, so you don't always need to qualify it with std::.
– Ben Hymers
Jul 31 '13 at 8:28
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Handler vs AsyncTask vs Thread [closed]
...bout the differences between Handlers , AsyncTask and Threads in Android. I've read quite a few blogs and questions here in StackOverflow.
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Does Java 8 provide a good way to repeat a value or function?
....nCopies call creates a List containing n copies of whatever value you provide. In this case it's the boxed Integer value 1. Of course it doesn't actually create a list with n elements; it creates a "virtualized" list that contains only the value and the length, and any call to get within range just...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phone.
5 Answers
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What is the purpose of AsQueryable()?
...ust use AsQueryable on all enumerables to use them. This allows you to avoid writing two separate versions of very generalized helper methods.
It allows you to change the compile time type of a queryable to be an IQueryable, rather than some more derived type. In effect; you'd use it on an IQuerya...