mysql self join

Assuming that table B is exact copy of table A, and that all necessary indexes are created, self-join of table A should be a bit faster than join of B with A simply because data from table A and its indexes can be reused from cache in order to perform self-join (this may also implicitly […]


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Web Development

Web development is a much, much deeper subject than simply building websites. It involves project management, agile work methods, and knowledge of a multitude of technologies, from the behind the scenes software that make websites come to life, to the ‘font end’ technologies that make the finished product look and feel welcoming for the user. […]