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SAP C_ABAPD_2507 Exam Questions

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SAP Certified Associate - Back-End Developer - ABAP Cloud

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SAP C_ABAPD_2507 Sample Questions – Free Practice Test & Real Exam Prep

Question #1

What are some characteristics of secondary keys for internal tables? Note: There are 3 correct answers to this question.

  • A. Secondary keys must be chosen explicitly when you actually read from an internal table.
  • B. Multiple secondary keys are allowed for any kind of internal table.
  • C. Hashed secondary keys do NOT have to be unique.
  • D. Sorted secondary keys do NOT have to be unique.
  • E. Secondary keys can only be created for standard tables.
Answer: A, B, D
Explanation:
Secondary keys are additional keys that can be defined for internal tables to optimize the access to
the table using fields that are not part of the primary key. Secondary keys can be either sorted or
hashed, depending on the table type and the uniqueness of the key. Secondary keys have the
following characteristics1:
A . Secondary keys must be chosen explicitly when you actually read from an internal table. This
means that when you use a READ TABLE or a LOOP AT statement to access an internal table, you have
to specify the secondary key that you want to use with the USING KEY addition. For example, the
following statement reads an internal table itab using a secondary key sec_key:
READ TABLE itab USING KEY sec_key INTO DATA(wa).
If you do not specify the secondary key, the system will use the primary key by default2.
B . Multiple secondary keys are allowed for any kind of internal table. This means that you can define
more than one secondary key for an internal table, regardless of the table type. For example, the
following statement defines an internal table itab with two secondary keys sec_key_1 and
sec_key_2:
DATA itab TYPE SORTED TABLE OF ty_itab WITH NON-UNIQUE KEY sec_key_1 COMPONENTS field1
field2 sec_key_2 COMPONENTS field3 field4.
You can then choose which secondary key to use when you access the internal table1.
D . Sorted secondary keys do NOT have to be unique. This means that you can define a sorted
secondary key for an internal table that allows duplicate values for the key fields. A sorted secondary
key maintains a predefined sorting order for the internal table, which is defined by the key fields in
the order in which they are specified. For example, the following statement defines a sorted
secondary key sec_key for an internal table itab that sorts the table by field1 in ascending order and
field2 in descending order:
DATA itab TYPE STANDARD TABLE OF ty_itab WITH NON-UNIQUE SORTED KEY sec_key COMPONENTS
field1 ASCENDING field2 DESCENDING.
You can then access the internal table using the sorted secondary key with a binary search algorithm,
which is faster than a linear search3.
The following are not characteristics of secondary keys for internal tables, because:
C . Hashed secondary keys do NOT have to be unique. This is false because hashed secondary keys
must be unique. This means that you can only define a hashed secondary key for an internal table
that does not allow duplicate values for the key fields. A hashed secondary key does not have a
predefined sorting order for the internal table, but uses a hash algorithm to store and access the
table rows. For example, the following statement defines a hashed secondary key sec_key for an
internal table itab that hashes the table by field1 and field2:
DATA itab TYPE STANDARD TABLE OF ty_itab WITH UNIQUE HASHED KEY sec_key COMPONENTS
field1 field2.
You can then access the internal table using the hashed secondary key with a direct access algorithm,
which is very fast.
E . Secondary keys can only be created for standard tables. This is false because secondary keys can
be created for any kind of internal table, such as standard tables, sorted tables, and hashed tables.
However, the type of the secondary key depends on the type of the internal table. For example, a
standard table can have sorted or hashed secondary keys, a sorted table can have sorted secondary
keys, and a hashed table can have hashed secondary keys1.
Reference: 1: Secondary Table Key - ABAP Keyword Documentation 2: READ TABLE - ABAP Keyword
Documentation 3: Sorted Tables - ABAP Keyword Documentation : Hashed Tables - ABAP Keyword
Documentation

Question #2

What would be the correct expression to change a given string value 'mr joe doe' into 'JOE' in an ABAP SQL field list?

  • A. SELECT FROM TABLE dbtabl FIELDSOf1,upper(left( 'mr joe doe', 6)) AS f2_up_left, f3,
  • B. SELECT FROM TABLE dbtabl FIELDSOf1,left(lower(substring( 'mr joe doe', 4, 3)), 3) AS f2_left_lo_sub, f3,
  • C. SELECT FROM TABLE dbtabl FIELDSOf1,substring(upper('mr joe doe'), 4, 3) AS f2_sub_up, f3,...
  • D. SELECT FROM TABLE dbtabl FIELDSOf1,substring(lower(upper( 'mr joe doe' ) ), 4, 3) AS f2_sub_lo_up, f3,
Answer: C
Explanation:
The correct expression to change a given string value ˜mr joe doe into ˜JOE in an ABAP SQL field list
is C. SELECT FROM TABLE dbtabl FIELDS Of1, substring(upper(˜mr joe doe), 4, 3) AS f2_sub_up, f3,¦
This expression uses the following SQL functions for strings12:
upper: This function converts all lowercase characters in a string to uppercase. For example,
upper(˜mr joe doe) returns ˜MR JOE DOE.
substring: This function returns a substring of a given string starting from a specified position and
with a specified length. For example, substring(˜MR JOE DOE, 4, 3) returns ˜JOE.
AS: This keyword assigns an alias or a temporary name to a field or an expression in the field list. For
example, AS f2_sub_up assigns the name f2_sub_up to the expression substring(upper(˜mr joe doe),
4, 3).
You cannot do any of the following:
A . SELECT FROM TABLE dbtabl FIELDS Of1, upper(left( ˜mr joe doe, 6)) AS f2_up_left, f3,¦: This
expression uses the wrong SQL function for strings to get the desired result. The left function returns
the leftmost characters of a string with a specified length, ignoring the trailing blanks. For example,
left( ˜mr joe doe, 6) returns ˜mr joe. Applying the upper function to this result returns ˜MR JOE,
which is not the same as ˜JOE.
B . SELECT FROM TABLE dbtabl FIELDS Of1, left(lower(substring( ˜mr joe doe, 4, 3)), 3) AS
f2_left_lo_sub, f3,¦: This expression uses unnecessary and incorrect SQL functions for strings to get
the desired result. The lower function converts all uppercase characters in a string to lowercase. For
example, lower(substring( ˜mr joe doe, 4, 3)) returns ˜joe. Applying the left function to this result
with the same length returns ˜joe again, which is not the same as ˜JOE.
D . SELECT FROM TABLE dbtabl FIELDS Of1, substring(lower(upper( ˜mr joe doe ) ), 4, 3) AS
f2_sub_lo_up, f3,¦: This expression uses unnecessary and incorrect SQL functions for strings to get
the desired result. The lower function converts all uppercase characters in a string to lowercase, and
the upper function converts all lowercase characters in a string to uppercase. Applying both functions
to the same string cancels out the effect of each other and returns the original string. For example,
lower(upper( ˜mr joe doe ) ) returns ˜mr joe doe. Applying the substring function to this result
returns ˜joe, which is not the same as ˜JOE.
Reference: 1: SQL Functions for Strings - ABAP Keyword Documentation - SAP Online Help 2: sql_func
- String Functions - ABAP Keyword Documentation - SAP Online Help
Question #3

What are valid statements? Note: There are 3 correct answers to this question 

  • A. In class CL1, the interface method is named if-ml.
  • B. Class CL2 uses the interface.
  • C. Class CL1 uses the interface.
  • D. In class CL2, the interface method is named ifl-ml.
  • E. Class CL1 implements the interface.
Answer: BDE
Explanation:
The following are the explanations for each statement:
C: This statement is valid. Class CL1 uses the interface. This is because class CL1 implements the
interface ifl using the INTERFACES statement in the public section of the class definition. The
INTERFACES statement makes the class compatible with the interface and inherits all the
components of the interface. The class can then use the interface components, such as the method
ml, by using the interface component selector ~, such as ifl~ml12
E: This statement is valid. Class CL1 implements the interface. This is because class CL1 implements
the interface ifl using the INTERFACES statement in the public section of the class definition. The
INTERFACES statement makes the class compatible with the interface and inherits all the
components of the interface. The class must then provide an implementation for the interface
method ml in the implementation part of the class, unless the method is declared as optional or
abstract12
D: This statement is valid. In class CL2, the interface method is named ifl~ml. This is because class
CL2 has a data member named m0_ifl of type REF TO ifl, which is a reference to the interface ifl. The
interface ifl defines a method ml, which can be called using the reference variable m0_ifl. The
interface method ml has the name ifl~ml in the class, where ifl is the name of the interface and the
character ~ is the interface component selector12
The other statements are not valid, as they have syntax errors or logical errors. These statements are:
A: This statement is not valid. In class CL1, the interface method is named ifl~ml, not if-ml. This is
because class CL1 implements the interface ifl using the INTERFACES statement in the public section
of the class definition. The interface ifl defines a method ml, which can be called using the class
name or a reference to the class. The interface method ml has the name ifl~ml in the class, where ifl
is the name of the interface and the character ~ is the interface component selector. Using the
character - instead of the character ~ will cause a syntax error12
B: This statement is not valid. Class CL2 does not use the interface, but only has a reference to the
interface. This is because class CL2 has a data member named m0_ifl of type REF TO ifl, which is a
reference to the interface ifl. The interface ifl defines a method ml, which can be called using the
reference variable m0_ifl. However, class CL2 does not implement the interface ifl, nor does it inherit
the interface components. Therefore, class CL2 does not use the interface, but only references the
interface12
Reference: INTERFACES - ABAP Keyword Documentation, CLASS - ABAP Keyword Documentation
Question #4

Exhibit: What are valid statements? Note: There are 3 correct answers to this question. 

  • A. go_if 1 may call method ml with go_ift->ml().
  • B. Instead of go ell = NEW #(...) you could use go ifl = NEW cll(. ... ).
  • C. go_cll may call method ml with go_dl->ifl-ml().
  • D. Instead of go_cll = NEW #() you could use go_iff - NEW #(...).
  • E. go_ifl may call method m2 with go if->m2(...).
Answer: ABE
Explanation:
The following are the explanations for each statement:
A: This statement is valid. go_ifl may call method ml with go_ifl->ml(). This is because go_ifl is a data
object of type REF TO ifl, which is a reference to the interface ifl. The interface ifl defines a method
ml, which can be called using the reference variable go_ifl. The class cll implements the interface ifl,
which means that it provides an implementation of the method ml. The data object go_ifl is assigned
to a new instance of the class cll using the NEW operator and the inline declaration operator
@DAT
A. Therefore, when go_ifl->ml() is called, the implementation of the method ml in the class cll
is executed123
B: This statement is valid. Instead of go_cll = NEW #(¦) you could use go_ifl = NEW cll(¦). This is
because go_ifl is a data object of type REF TO ifl, which is a reference to the interface ifl. The class cll
implements the interface ifl, which means that it is compatible with the interface ifl. Therefore, go_ifl
can be assigned to a new instance of the class cll using the NEW operator and the class name cll. The
inline declaration operator @DATA is optional in this case, as go_ifl is already declared. The
parentheses after the class name cll can be used to pass parameters to the constructor of the class
cll, if any123
E: This statement is valid. go_ifl may call method m2 with go_ifl->m2(¦). This is because go_ifl is a
data object of type REF TO ifl, which is a reference to the interface ifl. The class cll implements the
interface ifl, which means that it inherits all the components of the interface ifl. The class cll also
defines a method m2, which is a public method of the class cll. Therefore, go_ifl can call the method
m2 using the reference variable go_ifl. The method m2 is not defined in the interface ifl, but it is
accessible through the interface ifl, as the interface ifl is implemented by the class cll. The
parentheses after the method name m2 can be used to pass parameters to the method m2, if any123
The other statements are not valid, as they have syntax errors or logical errors. These statements are:
C: This statement is not valid. go_cll may call method ml with go_cll->ifl~ml(). This is because go_cll
is a data object of type REF TO cll, which is a reference to the class cll. The class cll implements the
interface ifl, which means that it inherits all the components of the interface ifl. The interface ifl
defines a method ml, which can be called using the reference variable go_cll. However, the syntax for
calling an interface method using a class reference is go_cll->ml(), not go_cll->ifl~ml(). The interface
component selector ~ is only used when calling an interface method using an interface reference,
such as go_ifl->ifl~ml(). Using the interface component selector ~ with a class reference will cause a
syntax error123
D: This statement is not valid. Instead of go_cll = NEW #() you could use go_ifl = NEW #(¦). This is
because go_ifl is a data object of type REF TO ifl, which is a reference to the interface ifl. The
interface ifl cannot be instantiated, as it does not have an implementation. Therefore, go_ifl cannot
be assigned to a new instance of the interface ifl using the NEW operator and the inline declaration
operator @DAT
A. This will cause a syntax error or a runtime error. To instantiate an interface, you
need to use a class that implements the interface, such as the class cll123
Reference: INTERFACES - ABAP Keyword Documentation, CLASS - ABAP Keyword
Documentation, NEW - ABAP Keyword Documentation

Question #5

Which of the following results in faster access to internal tables? Note: There are 3 correct answers to this question. 

  • A. In a sorted internal table, specifying the primary key partially from the left without gaps.
  • B. In a sorted internal table, specifying the primary key completely.
  • C. In a standard internal table, specifying the primary key partially from the left without gaps.
  • D. In a hashed internal table, specifying the primary key partially from the left without gaps.
  • E. In a hashed internal table, specifying the primary key completely.
Answer: B, D, E
Explanation:
The access to internal tables can be optimized by using the appropriate table type and specifying the
table key. The table key is a set of fields that uniquely identifies a row in the table and determines
the sorting order of the table. The table key can be either the primary key or a secondary key. The
primary key is defined by the table type and the table definition, while the secondary key is defined
by the user using the KEY statement1.
The following results in faster access to internal tables:
B . In a sorted internal table, specifying the primary key completely. A sorted internal table is a table
type that maintains a predefined sorting order, which is defined by the primary key in the table
definition. The primary key can be either unique or non-unique. A sorted internal table can be
accessed using the primary key or the table index. The access using the primary key is faster than the
access using the table index, because the system can use a binary search algorithm to find the
row. However, the primary key must be specified completely, meaning that all the fields of the
primary key must be given in the correct order and without gaps2.
D . In a hashed internal table, specifying the primary key partially from the left without gaps. A
hashed internal table is a table type that does not have a predefined sorting order, but uses a hash
algorithm to store and access the rows. The primary key of a hashed internal table must be unique
and cannot be changed. A hashed internal table can only be accessed using the primary key, not the
table index. The access using the primary key is very fast, because the system can directly calculate
the position of the row using the hash algorithm. The primary key can be specified partially from the
left without gaps, meaning that some of the fields of the primary key can be omitted, as long as they
are the rightmost fields and there are no gaps between the specified fields.
E . In a hashed internal table, specifying the primary key completely. A hashed internal table is a
table type that does not have a predefined sorting order, but uses a hash algorithm to store and
access the rows. The primary key of a hashed internal table must be unique and cannot be changed.
A hashed internal table can only be accessed using the primary key, not the table index. The access
using the primary key is very fast, because the system can directly calculate the position of the row
using the hash algorithm. The primary key can be specified completely, meaning that all the fields of
the primary key must be given in the correct order.
The following do not result in faster access to internal tables, because:
A . In a sorted internal table, specifying the primary key partially from the left without gaps. A sorted
internal table is a table type that maintains a predefined sorting order, which is defined by the
primary key in the table definition. The primary key can be either unique or non-unique. A sorted
internal table can be accessed using the primary key or the table index. The access using the primary
key is faster than the access using the table index, because the system can use a binary search
algorithm to find the row. However, the primary key must be specified completely, meaning that all
the fields of the primary key must be given in the correct order and without gaps. If the primary key
is specified partially from the left without gaps, the system cannot use the binary search algorithm
and has to perform a linear search, which is slower2.
C . In a standard internal table, specifying the primary key partially from the left without gaps. A
standard internal table is a table type that does not have a predefined sorting order, but uses a
sequential storage and access of the rows. The primary key of a standard internal table is the
standard key, which consists of all the fields of the table row in the order in which they are defined. A
standard internal table can be accessed using the primary key or the table index. The access using the
primary key is slower than the access using the table index, because the system has to perform a
linear search to find the row. The primary key can be specified partially from the left without gaps,
but this does not improve the access speed, because the system still has to perform a linear search.
Reference: 1: Internal Tables - Overview - ABAP Keyword Documentation 2: Sorted Tables - ABAP
Keyword Documentation : Hashed Tables - ABAP Keyword Documentation : Standard Tables - ABAP
Keyword Documentation
Question #6

What is the sequence priority when evaluating a logical expression?A) NOT 1B) OR 3C) AND 2

  • A. A B C
  • B. CAB
  • C. A C B
  • D. B A C
Answer: C
Explanation:
The sequence priority when evaluating a logical expression is C. A C B, which means NOT, AND, OR.
This is the order of precedence of the Boolean operators in ABAP, which determines how the system
implicitly parenthesizes all logical expressions that are not closed by explicit parentheses. The
operator with the highest priority is evaluated first, and the operator with the lowest priority is
evaluated last. The order of precedence of the Boolean operators in ABAP is as follows12:
NOT: The NOT operator is a unary operator that negates the logical expression that follows it. It has
the highest priority and is evaluated before any other operator. For example, in the expression NOT a
AND b, the NOT operator is applied to a first, and then the AND operator is applied to the result and
b.
AND: The AND operator is a binary operator that returns true if both logical expressions on its left
and right are true, and false otherwise. It has the second highest priority and is evaluated before the
OR and EQUIV operators. For example, in the expression a AND b OR c, the AND operator is applied
to a and b first, and then the OR operator is applied to the result and c.
OR: The OR operator is a binary operator that returns true if either or both logical expressions on its
left and right are true, and false otherwise. It has the third highest priority and is evaluated after the
NOT and AND operators, but before the EQUIV operator. For example, in the expression a OR b
EQUIV c, the OR operator is applied to a and b first, and then the EQUIV operator is applied to the
result and c.
EQUIV: The EQUIV operator is a binary operator that returns true if both logical expressions on its left
and right have the same truth value, and false otherwise. It has the lowest priority and is evaluated
after all other operators. For example, in the expression a AND b EQUIV c OR d, the EQUIV operator is
applied to a AND b and c last, after the AND and OR operators are applied.
Reference: 1: log_exp - Boolean Operators and Parentheses - ABAP Keyword Documentation - SAP
Online Help 2: Logical Expressions (log_exp) - ABAP Keyword Documentation - SAP Online Help
Question #7

 Setting a field to read-only in which object would make the field read-only in all applications of the RESTful Application Programming model?

  • A. Service definition
  • B. Behaviour definition
  • C. Projection view
  • D. Metadata extension
Answer: B
Explanation:
The object that can be used to set a field to read-only in all applications of the RESTful Application
Programming model (RAP) is the behaviour definition. The behaviour definition is a CDS artefact that
defines the business logic and the UI behaviour of a business object. A business object is a CDS entity
that represents a business entity or concept, such as a customer, an order, or a product. The
behaviour definition can specify the properties of the fields of a business object, such as whether
they are mandatory, read-only, or transient. These properties are valid for all applications that use
the business object, such as transactional, analytical, or draft-enabled apps12. For example:
The following code snippet defines a behaviour definition for a business object ZI_PB_APPLICATION.
It sets the field APPLICATION to read-only for all applications that use this business object:
define behavior for ZI_PB_APPLICATION { field ( read only ) APPLICATION; ¦ }
You cannot do any of the following:
A . Service definition: A service definition is a CDS artefact that defines the interface and the binding
of a service. A service is a CDS entity that exposes the data and the functionality of one or more
business objects as OData, InA, or SQL services. A service definition can specify the properties of the
fields of a service, such as whether they are filterable, sortable, or aggregatable. However, these
properties are only valid for the specific service that uses the business object, not for all applications
that use the business object12.
C . Projection view: A projection view is a CDS artefact that defines a view on one or more data
sources, such as tables, views, or associations. A projection view can select, rename, or aggregate
the fields of the data sources, but it cannot change the properties of the fields, such as whether they
are read-only or not. The properties of the fields are inherited from the data sources or the
behaviour definitions of the business objects12.
D . Metadata extension: A metadata extension is a CDS artefact that defines additional annotations
for a CDS entity, such as a business object, a service, or a projection view. A metadata extension can
specify the properties of the fields of a CDS entity for UI or analytical purposes, such as whether they
are visible, editable, or hidden. However, these properties are only valid for the specific UI or
analytical application that uses the metadata extension, not for all applications that use the CDS
entity12.
Reference: 1: ABAP CDS - Data Definitions - ABAP Keyword Documentation - SAP Online Help 2: ABAP CDS - Behavior Definitions - ABAP Keyword Documentation - SAP Online Help 
Question #8

Which of the following are incomplete ABAP types? Note: There are 2 correct answers to this question.

  • A. String
  • B. T
  • C. C
  • D. P
Answer: CD
Explanation:
Incomplete ABAP types are types that do not specify all the attributes of a data type, such as the
length, the number of decimal places, or the value range. Incomplete types can only be used for the
typing of field symbols and formal parameters, not for the definition of data objects or
constants. Incomplete types can be either predefined or user-defined1.
The following are incomplete ABAP types:
C . C is a type for character strings with a generic length. The length of the character string has to be
specified when a data object or a constant is defined with this type. For example, DATA text TYPE c
LENGTH 10 defines a data object named text with a type c and a length of 10 characters2.
D . P is a type for packed numbers with a generic length and a generic number of decimal places. The
length and the number of decimal places of the packed number have to be specified when a data
object or a constant is defined with this type. For example, DATA amount TYPE p LENGTH 8 DECIMALS
2 defines a data object named amount with a type p, a length of 8 bytes, and 2 decimal places3.
The following are not incomplete ABAP types, because they specify all the attributes of a data type:
A . String is a type for variable-length character strings. The length of the character string is
determined at runtime and can vary from 0 to 2,147,483,647 characters. The length does not have to
be specified when a data object or a constant is defined with this type. For example, DATA text TYPE
string defines a data object named text with a type string and a variable length4.
B . T is a type for time values in the format HHMMSS. The length of the time value is fixed at 6
characters and does not have to be specified when a data object or a constant is defined with this
type. For example, DATA time TYPE t defines a data object named time with a type t and a length of 6
characters.
Reference: 1: Generic ABAP Types - ABAP Keyword Documentation 2: C - ABAP Keyword
Documentation 3: P - ABAP Keyword Documentation 4: String - ABAP Keyword Documentation : T -
ABAP Keyword DocumentationAnswer: CD
Explanation:
Incomplete ABAP types are types that do not specify all the attributes of a data type, such as the
length, the number of decimal places, or the value range. Incomplete types can only be used for the
typing of field symbols and formal parameters, not for the definition of data objects or
constants. Incomplete types can be either predefined or user-defined1.
The following are incomplete ABAP types:
C . C is a type for character strings with a generic length. The length of the character string has to be
specified when a data object or a constant is defined with this type. For example, DATA text TYPE c
LENGTH 10 defines a data object named text with a type c and a length of 10 characters2.
D . P is a type for packed numbers with a generic length and a generic number of decimal places. The
length and the number of decimal places of the packed number have to be specified when a data
object or a constant is defined with this type. For example, DATA amount TYPE p LENGTH 8 DECIMALS
2 defines a data object named amount with a type p, a length of 8 bytes, and 2 decimal places3.
The following are not incomplete ABAP types, because they specify all the attributes of a data type:
A . String is a type for variable-length character strings. The length of the character string is
determined at runtime and can vary from 0 to 2,147,483,647 characters. The length does not have to
be specified when a data object or a constant is defined with this type. For example, DATA text TYPE
string defines a data object named text with a type string and a variable length4.
B . T is a type for time values in the format HHMMSS. The length of the time value is fixed at 6
characters and does not have to be specified when a data object or a constant is defined with this
type. For example, DATA time TYPE t defines a data object named time with a type t and a length of 6
characters.
Reference: 1: Generic ABAP Types - ABAP Keyword Documentation 2: C - ABAP Keyword
Documentation 3: P - ABAP Keyword Documentation 4: String - ABAP Keyword Documentation : T -
ABAP Keyword Documentation
Question #9

What RESTful Application Programming feature is used to ensure the uniqueness of a semantic key?

  • A. Validation
  • B. Action
  • C. Determination
Answer: C
Explanation:
The RESTful Application Programming feature that is used to ensure the uniqueness of a semantic
key is determination. A determination is a type of behavior implementation that defines a logic that
is executed automatically when certain events occur, such as create, update, delete, or activate. A
determination can be used to calculate or derive values for certain fields, such as semantic keys,
based on other fields or external sources. A determination can also be used to check the uniqueness
of a semantic key by comparing it with the existing values in the database or the transaction buffer. A
determination can use the ABAP SQL or the EML syntax to access and manipulate data. A
determination can be defined using the DETERMINE action clause in the behavior definition of a CDS
view entity or a projection view. A determination can also be annotated with the
@ObjectModel.determination annotation to specify the event, the timing, and the scope of the
determination12
The other RESTful Application Programming features are not used to ensure the uniqueness of a
semantic key, but have different purposes and effects. These features are:
Validation: A validation is a type of behavior implementation that defines a logic that is executed
automatically when certain events occur, such as create, update, delete, or activate. A validation can
be used to check the consistency and correctness of the data, such as mandatory fields, data types,
value ranges, or business rules. A validation can use the ABAP SQL or the EML syntax to access and
manipulate data. A validation can be defined using the VALIDATE action clause in the behavior
definition of a CDS view entity or a projection view. A validation can also be annotated with the
@ObjectModel.validation annotation to specify the event, the timing, and the scope of the
validation12
Action: An action is a type of behavior implementation that defines a logic that is executed explicitly
by the user or the application. An action can be used to perform a specific business operation, such
as creating, updating, deleting, or activating an entity instance, or triggering a workflow or a
notification. An action can use the ABAP SQL or the EML syntax to access and manipulate data. An
action can be defined using the ACTION clause in the behavior definition of a CDS view entity or a
projection view. An action can also be annotated with the @ObjectModel.action annotation to
specify the name, the description, the parameters, and the visibility of the action12
Reference: Behavior Implementation - ABAP Keyword Documentation, Behavior Definition - ABAP
Keyword Documentation
Question #10

In the assignment, data (gv_result) = 1. what will be the data type of gv_result? 

  • A. OTYPE I
  • B. TYPE DEFLOAT 16
  • C. TYPE P DECIMALS 3
  • D. TYPE P DECIMALS 2
Answer: B
Explanation:
The data type of gv_result in the assignment data (gv_result) = 1 will be TYPE DECFLOAT 16. This is
because the assignment operator (=) in ABAP performs an implicit type conversion from the source
type to the target type, according to the following rules12:
If the target type is specified explicitly, the source value is converted to the target type.
If the target type is not specified explicitly, the source type is used as the target type, unless the
source type is a literal or an expression, in which case the target type is determined by the following
priority order: DECFLOAT34, DECFLOAT16, P, F, I, C, N, X, STRING, XSTRING.
In this case, the target type is not specified explicitly, and the source type is an expression
(1). Therefore, the target type is determined by the priority order, and the first matching type is
DECFLOAT16, which is a decimal floating point type with 16 digits of precision12.
Reference: 1: ABAP Assignment Rules - ABAP Keyword Documentation - SAP Online Help 2: ABAP
Data Types - ABAP Keyword Documentation - SAP Online Help

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