Count the Records in an internal table without a loop.

Question

How do i count the number of records in an internal table without using the loop  statement.
The Describe statement give the total no. of records in the internal table.But i want the count of the key fields in the internal table
For eg
Row Field
1       A
2       A
3       A
4       B
5       B
6       C
Count of A = 3
Count of B = 2
Count of C = 1

Answer 1

Dilip,
  I think isn't posible. Only 3 ideas:
1ª, make other table "table2", similar to your actual table.
     table2[] = yourtable[].
     delete table2 where key <> 'A'.
     describe table table2 lines contA.
    But depending the amount of data, you may have problems in performance or memory consumption...
2ª, make other table, only with the keys fields and a count field,
    data begin table2
       key_field1,
       cont type i.
    end data.
   when you append lines to yourdata, make a collect to this table:
    table2-keys = yourtable-keys.
    table2-cont = 1.
   collect table2.
   But only works if you can modify the program where data is appended, and you may be carefull when data is deleted :-(...
3ª if your data if filled in a select, you may fill the table2 of point 2ª, making a similar select but:
   select keyfields count( * ) into table table2
  from ...
  where (the same you have to fill your original table...)
   group by keys.
But you have the same problem is data is deleted later...
I hope that any of the three is useful for you...
Edited by: Diego Alvarez on Jan 5, 2010 5:09 PM