Why are forests considered as biodiversity hotspot list two ways in which in individual can intimidating me towards management of forest and wildlife?
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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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