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Difference between VARCHAR and TEXT in MySQL [duplicate]
When we create a table in MySQL with a VARCHAR column, we have to set the length for it. But for TEXT type we don't have to provide the length.
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Use CSS3 transitions with gradient backgrounds
I'm trying to transition on hover with css over a thumbnail so that on hover, the background gradient fades in. The transition isn't working, but if I simply change it to an rgba() value, it works fine. Are gradients not supported? I tried using an image too, it won't transition the image either.
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INSERT IF NOT EXISTS ELSE UPDATE?
I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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How to execute a raw update sql with dynamic binding in rails
I want to execute one update raw sql like below:
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How to count the number of true elements in a NumPy bool array
I have a NumPy array 'boolarr' of boolean type. I want to count the number of elements whose values are True . Is there a NumPy or Python routine dedicated for this task? Or, do I need to iterate over the elements in my script?
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Referring to a Column Alias in a WHERE Clause
I get
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How can I add items to an empty set in python
I have the following procedure:
3 Answers
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Rails find record with zero has_many records associated [duplicate]
This seems fairly simple but I can't get it to turn up on Google.
6 Answers
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Preferred Github workflow for updating a pull request after code review
I've submitted a change to an Open Source project on Github, and received code review comments from one of the core team members.
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change text of button and disable button in iOS
How do you change the text of the button and disable a button in iOS?
8 Answers
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