Currently, I\'m developing a rails app that are heavy generating xml for restful webservice. My xml representation of web service use
Can you guys help me optimize this query.What\'s a more efficient way to do this? SELECT *, ( SELECT COUNT(i开发者_如何学JAVAd) FROM post WHERE created > 1288953377 AND topic_id = topic.id
Hey guys, forgive me if this is too simple a question. I basically want a count of the number of males and females in a database. So I know two simple queries will accomplish this, such as:
I have these table structures and while it works, using EXPLAIN on certain SQL queries gives \'Using temporary; Using filesort\' on one of the table. This might hamper performance once the table is po
I manage a rather large traffic website. On each page we keep track of a visitors online by running the following code. We then have a cron which deletes the records which are older than X minutes.
I have written a fairly complex SQL query to get some statistics about animals from an animal sampling database. This query includes a number of subqueries and I would now like to see if it is possibl
I\'m trying to understand if it\'s right to use one table for votes for more than one argument: table_votes
I\'m trying to filter a relationship table down to get a subset of the table where two conditions are met (ie: I want all of the id\'s of the entries who\'s color_ids are 1 or 2). It\'s a beefy table,
I am creating some repor开发者_开发问答ts for an application to be used by various states.The database has the potential to be very large.I would like to know which way is the best way to get column t
I need a Windows based MySQL profiler. I\'ve read the article where says that profiling is limited on Windows, but Im convinced that there has to be a tool which allow开发者_如何学JAVAs me at least to
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