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SAP Exam C_ABAPD_2309 Topic 5 Question 21 Discussion

Actual exam question for SAP's C_ABAPD_2309 exam
Question #: 21
Topic #: 5
[All C_ABAPD_2309 Questions]

What are advantages of using a field symbol for internal table row access? Note: There are answers to this question.

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Suggested Answer: B, C

The expression itab1 = corresponding #( itab2 ) is a constructor expression with the component operator CORRESPONDING that assigns the contents of the internal table itab2 to the internal table itab1. The following statements are true for using this expression:

B: itab1 and itab2 must have at least one field name in common. This is because the component operator CORRESPONDING assigns the identically named columns of itab2 to the identically named columns of itab1 by default, according to the rules of MOVE-CORRESPONDING for internal tables.If itab1 and itab2 do not have any field name in common, the expression will not assign any value to itab1 and it will remain initial or unchanged1

C: Fields with the same name and the same type will be copied from itab2 to itab1. This is because the component operator CORRESPONDING assigns the identically named columns of itab2 to the identically named columns of itab1 by default, according to the rules of MOVE-CORRESPONDING for internal tables.If the columns have the same name but different types, the assignment will try to perform a conversion between the types, which may result in a loss of precision, a truncation, or a runtime error, depending on the types involved1

The following statements are false for using this expression:

A: Fields with the same name but with different types may be copied from itab2 to itab1. This is not true, as explained in statement C.The assignment will try to perform a conversion between the types, which may result in a loss of precision, a truncation, or a runtime error, depending on the types involved1

D: itab1 and itab2 must have the same data type. This is not true, as the component operator CORRESPONDING can assign the contents of an internal table of one type to another internal table of a different type, as long as they have at least one field name in common. The target type of the expression is determined by the left-hand side of the assignment, which is itab1 in this case.The expression will create an internal table of the same type as itab1 and assign it to itab11


by Ricarda at Jul 08, 2024, 01:39 AM

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Daren
10 hours ago
I'm going with B. Not needing a MODIFY statement is a huge time-saver.
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Marquetta
11 days ago
D has to be the right answer. Anything that's faster is a win in my book!
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Royce
20 days ago
But doesn't copying the row content to the field symbol instead of a work area make it more complex?
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Ashton
21 days ago
I agree with Desmond, it saves time and improves performance.
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Justine
22 days ago
Option C seems the most logical to me. I don't want to have to copy the row content to a work area, that just adds an extra step.
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Joana
5 days ago
I agree, option C is definitely more efficient.
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Desmond
26 days ago
I think using a field symbol is faster than using a work area.
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