case when t1.Points_To_Maintain > 500 then ''
when t1.Points_To_Maintain >=400 then '500'
when t1.Points_To_Maintain >=300 then '400'
when t1.Points_To_Maintain >=200 then '300'
when t1.Points_To_Maintain >=100 then '200'
else '100'
end
You need to give the variable name in end statement like 'end as points'. See example below
Post your full code, this snippet is not enough to see why "your case doesn't work", I quote that as you also have not mentioned "what does not work". Test data is also advisable.
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