Learn, Practice, and Improve with SAP C_ABAPD_2309 Practice Test Questions

Explanation:

In ABAP RESTful Application Programming (RAP) for value help definitions, you can bind CDS views to provide value help in these three objects:

A. Data model view - In the consumption layer or sometimes in the basic interface view, you can define value helps using the @Consumption.valueHelpDefinition annotation directly in the CDS data model view.

C. Metadata Extension - This is a common place to define UI annotations including value help bindings using the @UI.identification, @UI.selectionField, or @UI.lineItem annotations with valueHelp properties to point to CDS views.

E. Projection View - In the projection layer (usually *_PROJECTION CDS views), you can define value help bindings using the @ObjectModel.valueHelpDefinition or consumption annotations to specify which CDS view should be used as a value help.

Why not the other options:

B. Behavior definition - Incorrect.
Behavior definitions (.bddef files) define the business object's behavior (create, update, delete, actions, validations) but not UI metadata like value help bindings. Value helps are defined in metadata/annotations, not behavior.

D. Service Definition- Incorrect.
Service definitions (.srdef files) expose business objects as OData services but don't contain metadata about value help bindings. They define which entities are exposed and their capabilities.

Reference:
SAP Help Documentation: "Defining Value Helps in ABAP RESTful Application Programming Model"

Explanation:

In the assignment DATA(gv_result) = 1 / 8., ABAP performs a division of two integer literals. Since the result 0.125 is a fractional number, ABAP cannot store it in an integer (I) or a packed number (P) without rounding or truncation. When using inline declarations with DATA(variable) = , ABAP automatically infers the type based on the assigned expression. For fractional numbers, ABAP chooses DECFLOAT16, a floating-point decimal type capable of representing fractions exactly, making it the correct data type for gv_result.

Why other options are incorrect:

A. TYPE I:
I represents integers only and cannot store decimal fractions. Assigning 0.125 would cause a runtime error or truncation.

C. TYPE P DECIMALS 3:
P is a packed decimal type with fixed decimal places. While it could store 0.125 with three decimals, ABAP type inference does not choose P automatically for expressions with fractional results.

D. TYPE P DECIMALS 2:
Similar to option C, but with only 2 decimal places. The result 0.125 would be rounded to 0.13, which changes the value. This is why ABAP does not default to this type.

References:

SAP ABAP Keyword Documentation – Inline Declarations:
“If the type of the data object is not specified, the runtime system determines the type according to the type of the assigned expression. For fractional numbers, the type DECFLOAT16 is chosen.” SAP Help – Inline Declarations

Explanation:

In modern ABAP Open SQL, when selecting data into an internal table, the INTO TABLE @ clause must be placed immediately after the FROM clause and before any WHERE, GROUP BY, or ORDER BY clauses. This ensures that the result of the SELECT statement is correctly assigned to the internal table.

In the given example:
SELECT carrid, connid, fldate, seatsmax, seatsocc, currency
FROM demo_cds_flights
INTO TABLE @gt_flights
WHERE fldate = @lv_date
GROUP BY carrid, connid, fldate
ORDER BY carrid, connid.

INTO TABLE @gt_flights is correctly positioned right after the FROM clause, allowing ABAP to infer the internal table target for the SELECT result.

Why other options are incorrect:

A. #15: This line does not exist in the current snippet; placing INTO TABLE here would be syntactically invalid.

C. #6 (WHERE fldate = @lv_date): INTO TABLE cannot be placed after the WHERE clause. The WHERE clause is part of the filtering logic, and the target internal table must already be defined before filtering is applied.

D. #8 (ORDER BY carrid, connid): INTO TABLE cannot come after ORDER BY. ORDER BY defines the result sequence, and the internal table target must already be specified to receive the result.

References:

SAP Help – ABAP SELECT Statement:
“The INTO TABLE clause must be placed immediately after the FROM clause in a SELECT statement.” SAP Help – ABAP SELECT

Explanation:

B. SAP BTP, ABAP environment:
This is a pure cloud Platform-as-a-Service (PaaS) offering (often referred to as "Steampunk"). Since it is hosted by SAP in the cloud and designed for side-by-side extensibility, it only supports the ABAP Cloud development model (Restricted ABAP, RAP, and released APIs). Classic ABAP is not permitted here.

D. SAP S/4HANA Cloud, public edition:
In the public cloud, SAP manages the software updates for all customers simultaneously. To ensure these updates don't break custom code, SAP enforces the "Clean Core" strategy. Therefore, the ABAP Cloud development model is mandatory for any "on-stack" developer extensibility in this environment.

Why Others are Incorrect:

A. SAP S/4HANA Cloud, private edition:
While the ABAP Cloud model is highly recommended here to achieve a "Clean Core," it is not mandatory. You can still use the "Standard ABAP" language version (Classic ABAP) and access non-released SAP objects, though this makes upgrades more difficult.

C. SAP S/4HANA on-premise:
Similar to the Private Edition, the ABAP Cloud model is optional. It was introduced (starting with version 2022) as an alternative to allow customers to build upgrade-stable extensions, but classic development remains fully supported.

Reference:
SAP Help Portal: ABAP Cloud Development Model - Overview
SAP Learning Journey: ABAP Cloud (C_ABAPD_2309 Curriculum)

Explanation:

B. They may have key fields.
- This is correct. Database tables typically have key fields (primary keys) that uniquely identify each record. In SAP ABAP, you define primary keys using the KEY clause in table definitions (e.g., KEY field1, field2). Even though keys are standard, technical or temporary tables might not require them.

D. They can have relationships to other tables.
- This is correct. Database tables establish relationships through foreign keys, which enforce referential integrity. In ABAP Dictionary (SE11), you define foreign key relationships that link fields in one table to the primary key of another table, creating parent-child relationships essential for data consistency.

Why other options are incorrect:

A. They store information in two dimensions.
- This is misleading. While relational tables can be conceptually viewed in two dimensions (rows and columns), they actually store data in a more complex internal structure. The "two-dimensional" description is an oversimplification of relational theory that doesn't accurately represent physical database storage or advanced table types (like cluster or pool tables in SAP).

C. They can have any number of key fields.
- This is false. Database tables have practical limitations on key fields. In SAP systems:

Transparent tables can have up to 16 key fields
The total length of all key fields cannot exceed 255 bytes
These limits are defined in the ABAP Dictionary and enforced by the underlying database system

Reference:
SAP Help Documentation "ABAP Dictionary - Table Types" and "Defining Tables" specify that transparent tables must have a primary key (1-16 fields) and can define foreign key relationships to other tables. The technical limits for key fields are documented in SAP Note 129943 (Table Key Restrictions).

Explanation:

Sorted internal tables are the only type that can be declared with either unique keys (using UNIQUE KEY) or non-unique keys (using NON-UNIQUE KEY). This flexibility allows developers to choose between enforcing uniqueness or allowing duplicate key entries based on the use case.

Why other options are incorrect:

B. Hashed - Incorrect.
Hashed tables must have a unique key. The hash algorithm relies on unique keys for direct access via a hash function. If duplicate keys were allowed, the hash mechanism would fail because it wouldn't know which entry to return. Hashed tables are declared with UNIQUE KEY only.

C. Standard - Incorrect.
Standard tables have no key management at the table level. They use linear search and have no concept of uniqueness enforcement for keys. While you can define a key (default or secondary), it's always non-unique and used only for certain operations like SORT or binary search after sorting.

Reference:

SAP ABAP documentation "Internal Tables - Key Accesses" states:
Sorted tables: "Can have a unique or non-unique key"
Hashed tables: "Must have a unique key"
Standard tables: "Has an internal linear index; key is always non-unique"

Explanation:

A. A hashed table, when you read a single record and specify the complete key.
- This is correct. Hashed tables use a hash algorithm that provides constant-time O(1) access when you specify the complete key. This makes them optimal for single record lookups with full key values, as the hash function computes the exact storage location directly without searching.

C. A sorted table, when you read a subset in a loop and specify a part of the key from the left without gaps.
- This is correct. Sorted tables maintain data in sorted order by their key. When you specify a partial key starting from the left (like the first one or two key fields), you can use a binary search (READ TABLE ... BINARY SEARCH) or loop with WHERE clause to efficiently access a range of records. This provides O(log n) access for subsets.

Why other options are incorrect:

B. A hashed table, when you read a subset in a loop and specify a part of the key from the left without gaps.
- Incorrect. Hashed tables cannot efficiently process partial keys. The hash function requires the complete key to compute the storage location. Partial key access requires a linear scan of the entire table (O(n)), defeating the purpose of using a hashed table.

D. A sorted table, when you read a single record and specify non key fields.
- Incorrect. Access by non-key fields requires a linear search in all internal table types. While sorted tables offer binary search for (partial) key access, they provide no advantage for non-key field searches—you must loop through all entries regardless of table type.

Reference:
SAP ABAP Performance Guidelines and documentation "Internal Tables - Performance" recommend:
Use hashed tables for single-record access with full key (optimal for table lookups)
Use sorted tables for range accesses or subsets with partial keys from the left (efficient for intervals)