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Master-master vs master-slave database architecture?
...piled
1. Master-Slave Replication
Pros
Analytic applications can read from the slave(s) without impacting the master
Backups of the entire database of relatively no impact on the master
Slaves can be taken offline and sync back to the master without any downtime
Cons
In the instance of a f...
How to use “raise” keyword in Python [duplicate]
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@user1735003, what does the as e do? How is it different from except SomeException?
– alpha_989
Jan 14 '18 at 2:46
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What is the proper way to re-throw an exception in C#? [duplicate]
I have a question for you that stems from my partner doing things a different way than I do.
9 Answers
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Creating a copy of an object in C# [duplicate]
Please have a look at the code below (excerpt from a C# book):
4 Answers
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Why do we copy then move?
... @user2030677: But that is a completely different example. In the example from your question you always end up holding a copy in data!
– Andy Prowl
May 23 '13 at 23:01
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...to have different conventions IMO, because the difference is already clear from context. The former happens within a function call, and the latter needs to stand alone at the current indentation level. IMO, for variable names longer than 5-6 characters (i.e. real life for most), the variant with spa...
What is the Ruby (spaceship) operator?
...,2] <=> [2,2,2]
Ruby will start comparing each element of both array from left hand side.
1 for left array is smaller than 2 of right array. Hence left array is smaller than right array. Output will be -1.
[2,3,2] <=> [2,2,2]
As above it will first compare first element which are equal ...
Escaping single quote in PHP when inserting into MySQL [duplicate]
...n (which you should know is a bad idea). This means that strings gathered from $_GET, $_POST and $_COOKIES are escaped for you (i.e., "O'Brien" -> "O\'Brien").
Once you store the data, and subsequently retrieve it again, the string you get back from the database will not be automatically escape...
How to retrieve a module's path?
... simple, you just need to know the directory you want to get notifications from.
19 Answers
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Check if PHP session has already started
I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
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