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Rails raw SQL example
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You can also mix raw SQL with ActiveRecord conditions, for example if you want to call a function in a condition:
my_instances = MyModel.where.not(attribute_a: nil) \
.where('crc32(attribute_b) = ?', slot) \
.select(:id)
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Oracle Differences between NVL and Coalesce
... a char by default and then you have the same issue listed in your item 3 (mixed data types). If you change it to TO_DATE(NULL) you probably wouldn't get the error (I can't reproduce the error on the version of Oracle I'm using). Otherwise I agree with and appreciate your answer. :-)
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What does cherry-picking a commit with Git mean?
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Is cherry picking really necessary? Won't a mixed reset or a soft reset do a similar job?
– Nav
Jun 6 '14 at 9:13
11
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How to complete a git clone for a big project on an unstable connection?
...economic issue of unreliable bandwidth with Google Fiber and Google Fi had mixed results. Its fiber micro-trenches in the city of Louisville were cut too shallowly into the asphalt, and the cables were found popping out from the road surface soon after work. Meanwhile, --depth 1 and --unshallow appe...
ActiveRecord, has_many :through, and Polymorphic Associations
...tirlic mentioned. Is there a way to not specify source_type, so you have a mixed results set? If anyone solved this, would love to know how.
– Damon Aw
Oct 22 '12 at 10:57
3
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What does a double * (splat) operator do
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Probably worth a note that if mixing keyword-arguments with keyword splat, the keyword splat needs to come after the keyword arguments.
– MrMesees
Apr 4 '19 at 10:28
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JavaScript unit test tools for TDD
...t unit tests and testing tools, but have been unable to find a suitable option to remain fully TDD compliant. So, is there a JavaScript unit test tool that is fully TDD compliant?
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Xcode 4 hangs at “Attaching to (app name)”
...graded to Xcode 4 and for some reason my app won't run in the simulator or iOS device. It was working perfectly in Xcode 3, but all of a sudden now when I press run the program stops at "Attaching to...". There doesn't seem to be any other info to help with this problem either.
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Changing image size in Markdown
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With certain Markdown implementations (including Mou and Marked 2 (only macOS)) you can append =WIDTHxHEIGHT after the URL of the graphic file to resize the image. Do not forget the space before the =.
You can skip the HEIGH...
What is the convention for word separator in Java package names?
...cific reason to avoid it is that I have seen people run into problems with mixed case package names when doing cross platform development. Especially when someone decides to rename or change the case of a package, you're then relying on both your VCS and development environments to do exactly the r...