Answer / sravan

APPEND statement adds the record to the internal table
body.We can't say it adds the new record at the end of the
internal table. It all depends on the type of the internal
table (standard,sorted or Hashed).
COLLECT statement searches for the data in the char type
fields and adds the numeric value.

eg.
if itab contains fields f1 and f2 f1 of char type and f2 of
numc type.
if itab contains data like this.
f1 f2
A 5
b 30
c 10

if we give collect stament like collect itab ( A and 15 as
values)

the data in the itab will become.
f1 f2
A 20
b 30
c 10


this is how it works

Answer / aditya

append adds to end of the internal table, irrespective if
the same data was present or not.
collect doesnt add duplicate records as it searches for the key.

Answer / chvpavankumar

append adds the recoed to table body
collect first search for the non numeric fields.if it same
adds the numeric values

Answer / sainath

Append statement appends the contents of the header line at
the end of the internal table.
The Collect statement includes the header line of the
internal table in the table as the new entry or adds it to
the existing entry of the same type.

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