Environmental Sciences, asked by senriya7223, 1 year ago

Management of biosphere for providing maximum benefit to the present generation and also maintaining the potential for the future generation is the theme of

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Answered by Anonymous
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When MySQL SUM() function is applied to a column containing no values then it returns NULL as output. I want to customize this output to return 0 at the place of NULL. MySQL SUM() function returns NULL when we try to find the total tender value quoted by 'Honda Group' because it is having no value in the column

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