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SqlAlchemy - Filtering by Relationship Attribute
I don't have much experience with SQLAlchemy and I have a problem, which I can't solve. I tried searching and I tried a lot of code.
This is my Class (reduced to the most significant code):
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What are the underlying data structures used for Redis?
...every Redis operation you'll find the time complexity in the documentation and, if you have the set of operations and the time complexity, the only other thing you need is some clue about memory usage (and because we do many optimizations that may vary depending on data, the best way to get these la...
Connect Java to a MySQL database
...(DataSource) context.lookup("java:comp/env/jdbc/myDB");
or instantiating and configuring one from your database driver directly:
MysqlDataSource dataSource = new MysqlDataSource();
dataSource.setUser("scott");
dataSource.setPassword("tiger");
dataSource.setServerName("myDBHost.example.org");
an...
What is the use of the pipe symbol in YAML?
I am new to yaml, and I have a question about the pipe symbol (|) used for multiple lines. Does YAML have any syntax like the one below?
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How do I add a submodule to a sub-directory?
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You go into ~/.janus and run:
git submodule add <git@github ...> snipmate-snippets/snippets/
If you need more information about submodules (or git in general) ProGit is pretty useful.
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Validating an XML against referenced XSD in C#
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You need to create an XmlReaderSettings instance and pass that to your XmlReader when you create it. Then you can subscribe to the ValidationEventHandler in the settings to receive validation errors. Your code will end up looking like this:
using System.Xml;
using System.X...
Zero-based month numbering [closed]
...nth numbering which is off by 1 -- JavaScript comes to mind, as does Java, and if memory serves, C is another. I have some questions:
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Define preprocessor macro through CMake?
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For a long time, CMake had the add_definitions command for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler options).
An example using the new add_com...
VIM ctrlp.vim plugin: how to rescan files?
...cross the awesome ctrlp.vim plugin . It is a good alternative to the Command-T plugin which I have used before. What I did not like about Command-T is that it would take about 20-30 seconds to rescan files when it is invoked for the first time after starting vim.
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How to check if anonymous object has a method?
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Doesn't handle the case where the property is defined, but is not a function.
– matt2000
Aug 29 '18 at 23:42
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