C_ABAPD_2309 Online Practice Questions

Explanation:
When using the UNION clause in SQL or in Core Data Services (CDS) views, the requirement is that the number and types of the columns that are being unioned match in both SELECT statements. The column names themselves do not need to match, but the positions and data types do.
From the exhibit, we can see that both parts of the union have fields that are seemingly aliased correctly to ensure that the resulting unioned dataset has a consistent structure. The fields id, name, city, and country are present in both SELECT statements and have been given the same aliases, and there is a consistent partner alias that corresponds to Customer in the first SELECT and Agency in the second SELECT.
However, without knowing the exact data types of each field, we cannot definitively say whether there will be an activation error due to a mismatch in field types (option B). Assuming that the data types do match and that the key fields being referred to by the alias id are compatible for the purpose of the union, the response would likely be:
D. Activation successful
This assumes that the exhibit shows correct aliasing and compatible data types for the UNION operation. If the data types for the corresponding columns do not match, then there would be an activation error as per option B. But since the exhibit does not provide data type information, we have to base our answer on the typical requirements for a UNION to be successful.

Explanation:
Both statements are valid in ABAP, but they have different effects on the program.
##NEEDED is a pragma that can be used to hide warnings from the ABAP compiler syntax check. It tells the check tools that a variable or a parameter is needed for further processing, even if it is not used in the current statement. For example, if you declare a variable without assigning any value to it, you can use ##NEEDED to suppress the warning about unused variables12.
The pragma is not checked by the syntax checker means that you can use any pragma to hide any warning from the ABAP compiler syntax check, regardless of its effect on the program logic or performance. For example, if you use ##SHADOW to hide a warning about an obscured function, you can also use it to hide a warning about an invalid character in a string12. You cannot do any of the following:
#EC_NEEDED is not checked by the syntax checker: This is not a valid statement in ABAP. There is no pseudo-comment with #EC_NEEDED in ABAP3.
The pseudo-comment is checked by the syntax checker: This is false. Pseudo-comments are obsolete and should no longer be used in ABAP. They were replaced by pragmas since SAP NW 7.0 EhP2 (Enhancement Package)4.
Reference: 1: Pragmas - ABAP Keyword Documentation - SAP Online Help 2: [What are pragmas and
pseudo comments in ABAP? | SAP Blogs - SAP Community] 3: ABAP Keyword Documentation - SAP
Online Help 4: What are PRAGMAS and Pseudo comments in SAP ABAP

Explanation:
The code snippet in the image is an example of using the RAISE EXCEPTION statement to raise a class-based exception and create a corresponding exception object. The code snippet also uses the EXPORTING addition to pass parameters to the instance constructor of the exception class12. Some of the valid statements about the code snippet are:
The code creates an exception object and raises an exception: This is true. The RAISE EXCEPTION statement raises the exception linked to the exception class zcxl and generates a corresponding exception object. The exception object contains the information about the exception, such as the message, the source position, and the previous exception12.
“previous” expects the reference to a previous exception: This is true. The previous parameter is a predefined parameter of the instance constructor of the exception class cx_root, which is the root class of all class-based exceptions. The previous parameter expects the reference to a previous
exception object that was caught during exception handling. The previous parameter can be used to chain multiple exceptions and preserve the original cause of the exception12. You cannot do any of the following:
“zcxl” is a dictionary structure, and “paraml” and “param2” are this structure: This is false. zcxl is not a dictionary structure, but a user-defined exception class that inherits from the predefined exception class cx_static_check. param1 and param2 are not components of this structure, but input parameters of the instance constructor of the exception class zcxl. The input parameters can be used to pass additional information to the exception object, such as the values that caused the exception12.
“paraml” and “param2” are predefined names: This is false. param1 and param2 are not predefined names, but user-defined names that can be chosen arbitrarily. However, they must match the names of the input parameters of the instance constructor of the exception class zcxl. The names of the input parameters can be declared in the interface of the exception class using the RAISING addition12.
Explanation:
Reference: 1: RAISE EXCEPTION - ABAP Keyword Documentation - SAP Online Help 2: Class-Based Exceptions - ABAP Keyword Documentation - SAP Online Help

Explanation:
The function find_any_not_of returns the position of the first character in the string val that is not contained in the string sub. If no such character is found, the function returns 0. In this case, the string val contains only the characters A, B, and a, which are all contained in the string sub, so the function returns 0. The other functions return positive values, as follows:
Count_any_of returns the number of occurrences of any character in the string sub within the string val. In this case, it returns 8, since there are 8 A’s and B’s in val.
Count returns the number of occurrences of the string sub within the string val. In this case, it returns 2, since there are 2 AB’s in val.
find_any_of returns the position of the first character in the string val that is contained in the string sub. In this case, it returns 1, since the first character A is in sub.
Reference: String Functions - ABAP Keyword Documentation, Examples of String Functions - ABAP Keyword Documentation

Explanation:
In an ABAP class, the DATA statement is used to declare a variable with a specific data type. The possible types that can be used in place of *** in the DATA statement are:
The name of a type defined privately in class ZCL_CLASS_A - This is correct. Within a class, you can declare variables using types that are defined within the same class, whether they are defined publicly or privately.
The name of a data element from the ABAP Dictionary - This is also correct. Data elements defined in the ABAP Dictionary are global types that can be used in any ABAP program, including classes, to declare variables.