Multiple choice technology databases

CALL ‘CBLTDLI’ USING ‘GU ‘ LS-PCB-MASK, WS-IO-AREA SEGMENTA*P SEGMENTC Based on above code what will be retrieved

  1. Will retrieve segment C and parentage will be set at segment C

  2. Will retrieve segment C and parentage will be set at segment A

  3. Will retrieve segment A and parentage will be set at segment A

  4. Will retrieve segment A and parentage will be set at segment C

  5. Error out
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The GU (Get Unique) call with SSA 'SEGMENTA*P SEGMENTC' retrieves SEGMENTC because it's the last segment specified. The *P command code on SEGMENTA establishes parentage at SEGMENTA, not at the retrieved segment. Parentage is always set at the segment where the *P code appears. Thus, SEGMENTC is retrieved and parentage is set at SEGMENTA, making option B correct.

AI explanation

To answer this question, we need to understand the purpose of the CALL statement and the parameters being passed.

In this code snippet, the CALL statement is used to call a subroutine named 'CBLTDLI'. The USING phrase is used to pass parameters to the subroutine.

The parameters being passed are:

  • 'GU ' - This is a control option indicating that the utility function should be performed.
  • LS-PCB-MASK - This is a parameter used to specify which segments should be included in the retrieval.
  • WS-IO-AREA - This is a parameter used to pass the input/output area for the utility function.

Now, let's analyze the options:

Option A) Will retrieve segment C and parentage will be set at segment C - This option is incorrect. According to the code snippet, the segment to be retrieved is determined by the value of the LS-PCB-MASK parameter, not by the CALL statement. The parentage refers to the relationship between segments, and it is not mentioned in the code snippet.

Option B) Will retrieve segment C and parentage will be set at segment A - This option is correct. The LS-PCB-MASK parameter is passed to the subroutine, indicating that segment C should be retrieved. The parentage, which refers to the relationship between segments, is not specified in the code snippet.

Option C) Will retrieve segment A and parentage will be set at segment A - This option is incorrect. The LS-PCB-MASK parameter is passed to the subroutine, indicating that segment C should be retrieved, not segment A.

Option D) Will retrieve segment A and parentage will be set at segment C - This option is incorrect. The LS-PCB-MASK parameter is passed to the subroutine, indicating that segment C should be retrieved, not segment A.

Option E) Error out - This option is incorrect. There is no indication in the code snippet that an error will occur.

Based on the analysis above, the correct answer is B) Will retrieve segment C and parentage will be set at segment A. This option aligns with the code snippet provided.

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