dou91808 2013-09-09 15:25
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在SQL数据库中平均用户输入的表单数据[关闭]

Can anyone school me on how to have MySQL via Codeigniter syntax average form data and insert it into the corresponding database table upon submission?

I am able to collect the form information and store it in the database correctly. I just don't know the general coding for averaging the data and storing it in the appropriate column of table.

For instance: If the user enters five test scores: 98 99 46 93 and 55 and presses "Submit" each item is successfully inserted in its correct column in the table ('test1', 'test2', 'test3', 'test4', and 'test5'). However, I would like the sixth column to be the average of the scores (i.e. 'test_avg'). But, I don't know how to code that part of the process.

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  • doudiyu1639 2013-09-09 15:29
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    You should not store that calculated value in you table. Instead you shoud use a view on top of that table that performs the calculation for you.

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