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String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
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How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
I have a innoDB table which records online users. It gets updated on every page refresh by a user to keep track of which pages they are on and their last access date to the site. I then have a cron that runs every 15 minutes to DELETE old records.
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What are the applications of binary trees?
I am wondering what the particular applications of binary trees are. Could you give some real examples?
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Why use multiple columns as primary keys (composite primary key)
This example is taken from w3schools .
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How do you get the list of targets in a makefile?
I've used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg
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How to delete multiple values from a vector?
I have a vector like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5
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Javascript How to define multiple variables on a single line?
Reading documentation online, I'm getting confused how to properly define multiple JavaScript variables on a single line.
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Does every Core Data Relationship have to have an Inverse?
Let's say I have two Entity classes: SocialApp and SocialAppType
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Is there a standard for storing normalized phone numbers in a database?
What is a good data structure for storing phone numbers in database fields? I'm looking for something that is flexible enough to handle international numbers, and also something that allows the various parts of the number to be queried efficiently.
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Sorting an array of objects by property values
I've got the following objects using AJAX and stored them in an array:
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