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2-What is the difference between At New and On change Of
inside a loop??I want inside a loop difference not basic
difference??
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Answer Posted / bhuvanya
Q. What is the difference between 'At New / End At' and 'On Change Of / EndOn'?
1. 'On Change Of' can be used in any loop construct, not just 'Loop At'.
2. A Single 'On Change Of' can be triggered by a change within one or more fields named after of and separated by OR.
3. When used within a loop, a change in a field to the left of the control level does not trigger a control break.
4. When used within a loop, fields to the right still contain their original values; they are not changed to contain zero or asterisks.
5. You can use 'else' statement between 'On Change OF' and 'End On'. You can also use ELSEIF statements in conjunction with special implementation of ON, but should always try to avoid this because they may not be supported in future.
6. You can use it with 'Loop At' IT WHERE clause……
7. You can use 'SUM' with 'On Change Of'. It sums all numeric fields except the one(s) named after Of.
8. Another difference is while using 'at new' in case if you code any write statements between 'at new' and 'end at' the value for the numeric fields will be returned as 0 and that of no numeric fields will be returned as *(asterisk). But in on change of the original values will be returned.
NOTE: Use the 'At First' and 'At Last' statement to perform during the first or last pass of internal table. These statements can only be used within 'LOOP AT'; they cannot be used within select.
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