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Hi, I have a table like this – postgres=# \d m Table "public.m" Column | Type | Modifiers --------+---------+----------- id | integer | marks | integer |
postgres=# select * from m; id | marks ----+------- 1 | 27 2 | 37 3 | 17 4 | 27 5 | 18 (5 rows)
I wanted to get cumulative counts of students in different ranges – >90, > 80 , > 70 etc. >10 5 >20 3 >30 1 >40 0 > 50 0
So each student may get counted many times, someone with 99 will be counted 10 times. Possible to do this with a fat query? The table will have many thousands of records.
Regards, Jayadevan
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