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select case color
when 1 then 'red'
when 2 then 'green'
when 3 then 'blue'
else 'black'
end as 'colorName',
foodName from foods
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select foodName, case
when foodPrice is null then 0
else foodPrice
end as price,
foodCost from foods left join foodPrices on foods.foodId = foodPrices.foodId
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when nullif(foodPrice, null) is null then 0
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2004-09-12 11:06:08.177
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