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#1
March 4th, 2008, 08:18 AM
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Retrieve/Update Same Row Conflict?
I am using a mySQL database to store data for a financial analysis application that I have built. The database is having data inserted it into it and updated on a very rapid basis (many times per second). While this is happening, I also need to retrieve data from the database. Since all of this is happening so fast, what I am concerned about is could there be a possible error if I retrieve a row at the same exact time that a query is running to update it?
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#2
March 10th, 2008, 07:15 AM
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What database engine are you using? MyISAM does a table lock when it is writing and INNODB does a row level lock. IIRC internally if both try to happen at the same time - it has a collision and then a time out for each thread before trying again. AFAIK it handles race conditions internally quite well.
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