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SQL join: selecting the last records in a one-to-many relationship
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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What is Activity.finish() method doing exactly?
I'm developing android applications for a while, and followed a lot of posts about activity life cycle, and application's life cycle.
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What's the idiomatic syntax for prepending to a short python list?
... explanation for the missing list.prepend() . Assuming my list is short and performance concerns are negligible, is
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WHERE vs HAVING
...ns you create yourself (for example select 1 as "number" ) after HAVING and not WHERE in MySQL?
7 Answers
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
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Blocks and yields in Ruby
I am trying to understand blocks and yield and how they work in Ruby.
10 Answers
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Can Protractor and Karma be used together?
...://github.com/angular/protractor/issues/9#issuecomment-19927049
Protractor and Karma should not be used together; instead they provide separate systems for running tests. Protractor and Karma cover different aspects of testing - Karma is intended mostly for unit tests, while Protractor should be use...
What's the difference between libev and libevent?
Both 2 libs are designed for async i/o scheduling, and both engages epoll on linux, and kqueue on FreeBSD, etc.
2 Answers
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Align two inline-blocks left and right on same line
How can I align two inline-blocks so that one is left and the other is right on the same line? Why is this so hard? Is there something like LaTeX's \hfill that can consume the space between them to achieve this?
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How to delete from multiple tables in MySQL?
...m trying to delete from a few tables at once. I've done a bit of research, and came up with this
7 Answers
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