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What do REFRESH and MERGE mean in terms of databases?
I'm curious and need to find this answer quick. Google won't help much.
2 Answers
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Possible to access the index in a Hash each loop?
I'm probably missing something obvious, but is there a way to access the index/count of the iteration inside a hash each loop?
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Concatenate strings in Less
I think this is not possible, but I thought I ask in case there is a way. The idea is that I have a variable for path to web resource folder:
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Assigning default value while creating migration file
Ok I use above line to create migration file that automatically generates code in the generated file to add a column to a model Tweet with datatype integer. Now I want to add default value to the added column while generating the migration file. Is that possible? I googled it but couldn't find. Guys...
Prevent ViewPager from destroying off-screen views
I have a ViewPager hooked up to a FragmentPagerAdapter that's displaying three fragments. The ViewPager appears to destroy a hosted fragment's view when it is more than one swipe away from the current position.
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Postgresql: Conditionally unique constraint
I'd like to add a constraint which enforces uniqueness on a column only in a portion of a table.
2 Answers
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How to inspect the return value of a function in GDB?
Is it possible to inspect the return value of a function in gdb assuming the return value is not assigned to a variable?
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Change Screen Orientation programmatically using a Button
I think this is implementable since screen rotation behaviour can go up to the application level.
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
Following on from this question , can someone explain the following in Scala:
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How to escape a pipe char in a code statement in a markdown table?
On GitHub I want to build a table containing pieces of code in Markdown. It works fine except when I put a pipe char (i.e. | ) between the backtick (i.e. ` ) chars.
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