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Add Column To Existing Table


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I'm running an application based on PHP and MySQL (all hosted on same server). I've been requested to add some functionality to the application which would require me to add a column to an existing table. Here's my question: is there any danger in adding a new column to an existing table? The production table contains about 4000 records. I do know that the new column will not contain any data, just want to make sure I think all the way thru this before starting. Thanks!

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