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sqlteradatateradata-sql-assistant

Percentage by year

I have this dataset

Year  score count
2007 20 grade 2000
2006 20       2385
2006 20 grade 10
2006 20 grade_N 3
2005 40 grade 428 
2006 40 grade 815 
2006 40 grade_1 15
2006 40 grade 3 
...

Generated by

SEL years,
Score,
,count(0)
,100.0*count(0)/sum(count(*)) over () as pct
From table1
Group by 1,2

If I add a condition

Where years =2006 it gives me the right percentage 

2006 20  73.8
2006 20 grade 0.0
...

But if I do not specify it, it returns lower number. How can I determine percentage by year?

Solution

  • Try this. sum(count(*)) over (partition by YEAR)