npx claudepluginhub secondsky/sap-skills --plugin sap-abapThis skill uses the workspace's default tool permissions.
- **sap-abap-cds**: Use when developing CDS views for ABAP-backed Fiori applications or defining data models with annotations
README.mdreferences/abap-dictionary.mdreferences/abap-sql.mdreferences/amdp.mdreferences/authorization.mdreferences/bits-bytes.mdreferences/builtin-functions.mdreferences/cds-views.mdreferences/cloud-development.mdreferences/constructor-expressions.mdreferences/date-time.mdreferences/design-patterns.mdreferences/dynamic-programming.mdreferences/exceptions.mdreferences/generative-ai.mdreferences/internal-tables.mdreferences/numeric-operations.mdreferences/object-orientation.mdreferences/performance.mdreferences/program-flow.mdGenerates design tokens/docs from CSS/Tailwind/styled-components codebases, audits visual consistency across 10 dimensions, detects AI slop in UI.
Records polished WebM UI demo videos of web apps using Playwright with cursor overlay, natural pacing, and three-phase scripting. Activates for demo, walkthrough, screen recording, or tutorial requests.
Delivers idiomatic Kotlin patterns for null safety, immutability, sealed classes, coroutines, Flows, extensions, DSL builders, and Gradle DSL. Use when writing, reviewing, refactoring, or designing Kotlin code.
This skill covers ABAP syntax from 7.40 SP08 through ABAP Cloud. Features requiring
a higher release are annotated with inline comments in code examples using the format
" [7.xx+] or noted in reference files. The table below summarizes the key version boundaries.
| Feature | 7.40 SP02 | 7.40 SP05 | 7.40 SP08 | 7.50 | 7.51 | 7.52 | 7.54 |
|---|---|---|---|---|---|---|---|
Inline declarations DATA(...) | x | x | x | x | x | x | x |
| Constructor operators (VALUE, NEW, CONV, COND, SWITCH, REF, EXACT, CAST) | x | x | x | x | x | x | x |
Table expressions itab[...] | x | x | x | x | x | x | x |
| String templates | x | x | x | x | x | x | x |
WITH EMPTY KEY | x | x | x | x | x | x | x |
line_exists(), line_index() | x | x | x | x | x | x | x |
ABAP SQL: @ host variables | x | x | x | x | x | x | |
| ABAP SQL: comma-separated lists | x | x | x | x | x | x | |
| ABAP SQL: SQL expressions in SELECT | x | x | x | x | x | x | |
CORRESPONDING operator | x | x | x | x | x | x | |
Table comprehensions (FOR) | x | x | x | x | x | x | |
LET expressions | x | x | x | x | x | x | |
REDUCE operator | x | x | x | x | x | ||
FILTER operator | x | x | x | x | x | ||
BASE addition | x | x | x | x | x | ||
LOOP AT ... GROUP BY | x | x | x | x | x | ||
ABAP SQL: dbtab~* in SELECT | x | x | x | x | x | ||
ABAP SQL: RIGHT OUTER JOIN | x | x | x | x | x | x | |
| CDS views with parameters | x | x | x | x | x | ||
FINAL(...) inline declaration | x | x | x | x | |||
Host expressions @( expr ) | x | x | x | x | |||
UNION in SELECT | x | x | x | x | |||
IS INSTANCE OF / CASE TYPE OF | x | x | x | x | |||
int8 type | x | x | x | x | |||
| CDS table functions | x | x | x | x | |||
| CDS access control (implicit) | x | x | x | x | |||
$session.user/client/system_language | x | x | x | x | |||
Test seams (TEST-SEAM) | x | x | x | x | |||
Common Table Expressions (WITH) | x | x | x | ||||
OFFSET in SELECT | x | x | x | ||||
UPPER/LOWER in CDS | x | x | x | ||||
| Enumerated types | x | x | x | ||||
Internal tables as data source FROM @itab | x | x | |||||
WITH PRIVILEGED ACCESS | x | x | |||||
utclong type and functions | x |
On a 7.40 system: Replace any FINAL(...) with DATA(...), and avoid 7.50+ features
marked in bold above. Most modern ABAP syntax (VALUE, NEW, CONV, inline declarations,
table expressions, REDUCE, FILTER, GROUP BY) is available since 7.40 SP08.
" Elementary types
DATA num TYPE i VALUE 123.
DATA txt TYPE string VALUE `Hello`.
DATA flag TYPE abap_bool VALUE abap_true.
" Inline declarations
DATA(result) = some_method( ).
FINAL(immutable) = `constant value`. " [7.50+] Use DATA(...) on 7.40
" Structures
DATA: BEGIN OF struc,
id TYPE i,
name TYPE string,
END OF struc.
" Internal tables
DATA itab TYPE TABLE OF string WITH EMPTY KEY.
DATA sorted_tab TYPE SORTED TABLE OF struct WITH UNIQUE KEY id.
DATA hashed_tab TYPE HASHED TABLE OF struct WITH UNIQUE KEY id.
" Create with VALUE
itab = VALUE #( ( col1 = 1 col2 = `a` )
( col1 = 2 col2 = `b` ) ).
" Read operations
DATA(line) = itab[ 1 ]. " By index
DATA(line2) = itab[ col1 = 1 ]. " By key
READ TABLE itab INTO wa INDEX 1.
READ TABLE itab ASSIGNING FIELD-SYMBOL(<fs>) WITH KEY col1 = 1.
" Modify operations
MODIFY TABLE itab FROM VALUE #( col1 = 1 col2 = `updated` ).
itab[ 1 ]-col2 = `changed`.
" Loop processing
LOOP AT itab ASSIGNING FIELD-SYMBOL(<line>).
<line>-col2 = to_upper( <line>-col2 ).
ENDLOOP.
" Delete
DELETE itab WHERE col1 > 5.
DELETE TABLE itab FROM VALUE #( col1 = 1 ).
" SELECT into table
SELECT * FROM dbtab INTO TABLE @DATA(result_tab). " @ syntax: 7.40 SP05+
" SELECT with conditions
SELECT carrid, connid, fldate " comma syntax: 7.40 SP05+
FROM zdemo_abap_fli
WHERE carrid = 'LH'
INTO TABLE @DATA(flights).
" Aggregate functions
SELECT carrid, COUNT(*) AS cnt, AVG( price ) AS avg_price
FROM zdemo_abap_fli
GROUP BY carrid
INTO TABLE @DATA(stats).
" JOIN operations
SELECT a~carrid, a~connid, b~carrname
FROM zdemo_abap_fli AS a
INNER JOIN zdemo_abap_carr AS b ON a~carrid = b~carrid
INTO TABLE @DATA(joined).
" Modification statements
INSERT dbtab FROM @struc.
UPDATE dbtab FROM @struc.
MODIFY dbtab FROM TABLE @itab.
DELETE FROM dbtab WHERE condition.
" VALUE - structures and tables
DATA(struc) = VALUE struct_type( comp1 = 1 comp2 = `text` ).
DATA(itab) = VALUE itab_type( ( a = 1 ) ( a = 2 ) ( a = 3 ) ).
" NEW - create instances
DATA(dref) = NEW i( 123 ).
DATA(oref) = NEW zcl_my_class( param = value ).
" CORRESPONDING - structure/table mapping
target = CORRESPONDING #( source ).
target = CORRESPONDING #( source MAPPING target_field = source_field ).
" COND/SWITCH - conditional values
DATA(text) = COND string( WHEN flag = abap_true THEN `Yes` ELSE `No` ).
DATA(result) = SWITCH #( code WHEN 1 THEN `A` WHEN 2 THEN `B` ELSE `X` ).
" CONV - type conversion
DATA(dec) = CONV decfloat34( 1 / 3 ).
" FILTER - table filtering
DATA(filtered) = FILTER #( itab WHERE status = 'A' ).
" REDUCE - aggregation
DATA(sum) = REDUCE i( INIT s = 0 FOR wa IN itab NEXT s = s + wa-amount ).
" Class definition
CLASS zcl_example DEFINITION PUBLIC FINAL CREATE PUBLIC.
PUBLIC SECTION.
METHODS constructor IMPORTING iv_name TYPE string.
METHODS get_name RETURNING VALUE(rv_name) TYPE string.
CLASS-METHODS factory RETURNING VALUE(ro_instance) TYPE REF TO zcl_example.
PRIVATE SECTION.
DATA mv_name TYPE string.
ENDCLASS.
CLASS zcl_example IMPLEMENTATION.
METHOD constructor.
mv_name = iv_name.
ENDMETHOD.
METHOD get_name.
rv_name = mv_name.
ENDMETHOD.
METHOD factory.
ro_instance = NEW #( `Default` ).
ENDMETHOD.
ENDCLASS.
" Interface implementation
CLASS zcl_impl DEFINITION PUBLIC.
PUBLIC SECTION.
INTERFACES zif_my_interface.
ENDCLASS.
TRY.
DATA(result) = risky_operation( ).
CATCH cx_sy_zerodivide INTO DATA(exc).
DATA(msg) = exc->get_text( ).
CATCH cx_root INTO DATA(any_exc).
" Handle any exception
CLEANUP.
" Cleanup code
ENDTRY.
" Raising exceptions
RAISE EXCEPTION TYPE zcx_my_exception
EXPORTING textid = zcx_my_exception=>error_occurred.
" With COND/SWITCH
DATA(val) = COND #( WHEN valid THEN result
ELSE THROW zcx_my_exception( ) ).
" Concatenation
DATA(full) = first && ` ` && last.
txt &&= ` appended`.
" String templates
DATA(msg) = |Name: { name }, Date: { date DATE = ISO }|.
" Functions
DATA(upper) = to_upper( text ).
DATA(len) = strlen( text ).
DATA(found) = find( val = text sub = `search` ).
DATA(replaced) = replace( val = text sub = `old` with = `new` occ = 0 ).
DATA(parts) = segment( val = text index = 2 sep = `,` ).
" FIND/REPLACE statements
FIND ALL OCCURRENCES OF pattern IN text RESULTS DATA(matches).
REPLACE ALL OCCURRENCES OF old IN text WITH new.
" Field symbols
FIELD-SYMBOLS <fs> TYPE any.
ASSIGN struct-component TO <fs>.
ASSIGN struct-(comp_name) TO <fs>. " Dynamic component
" Data references
DATA dref TYPE REF TO data.
dref = REF #( variable ).
CREATE DATA dref TYPE (type_name).
dref->* = value.
" RTTI - Get type information
DATA(tdo) = cl_abap_typedescr=>describe_by_data( dobj ).
DATA(components) = CAST cl_abap_structdescr( tdo )->components.
" RTTC - Create types dynamically
DATA(elem_type) = cl_abap_elemdescr=>get_string( ).
CREATE DATA dref TYPE HANDLE elem_type.
This skill includes 28 comprehensive reference files covering all aspects of ABAP development:
references/skill-reference-guide.md - Complete guide to all reference filesreferences/internal-tables.md - Complete table operationsreferences/abap-sql.md - Comprehensive SQL referencereferences/object-orientation.md - Classes and interfacesreferences/constructor-expressions.md - VALUE, NEW, COND, REDUCEreferences/rap-eml.md - RAP and EML operationsreferences/cds-views.md - CDS view developmentreferences/string-processing.md - String functions and regexreferences/unit-testing.md - ABAP Unit frameworkreferences/performance.md - Optimization techniques" Using VALUE with OPTIONAL
DATA(line) = VALUE #( itab[ key = value ] OPTIONAL ).
" Using VALUE with DEFAULT
DATA(line) = VALUE #( itab[ 1 ] DEFAULT VALUE #( ) ).
" Check before access
IF line_exists( itab[ key = value ] ).
DATA(line) = itab[ key = value ].
ENDIF.
DATA(result) = NEW zcl_builder( )
->set_name( `Test` )
->set_value( 123 )
->build( ).
" Transform table
DATA(transformed) = VALUE itab_type(
FOR wa IN source_itab
( id = wa-id name = to_upper( wa-name ) ) ).
" With WHERE
DATA(filtered) = VALUE itab_type(
FOR wa IN source WHERE ( status = 'A' )
( wa ) ).
" With INDEX INTO
DATA(numbered) = VALUE itab_type(
FOR wa IN source INDEX INTO idx
( line_no = idx data = wa ) ).
" Use released APIs only
DATA(uuid) = cl_system_uuid=>create_uuid_x16_static( ).
DATA(date) = xco_cp=>sy->date( )->as( xco_cp_time=>format->iso_8601_extended )->value.
DATA(time) = xco_cp=>sy->time( )->as( xco_cp_time=>format->iso_8601_extended )->value.
" Output in cloud (if_oo_adt_classrun)
out->write( result ).
" Avoid: sy-datum, sy-uzeit, DESCRIBE TABLE, WRITE, MOVE...TO
When targeting ABAP 7.40 systems, replace 7.50+ syntax with these patterns:
" Instead of FINAL (7.50+):
FINAL(value) = `constant`. " 7.50+
DATA(value) = `constant`. " 7.40 compatible
" Instead of host expressions (7.50+):
SELECT * FROM dbtab WHERE col = @( lv_val ). " 7.50+
SELECT * FROM dbtab WHERE col = @lv_val. " 7.40 compatible
" Instead of UNION (7.50+):
SELECT a FROM tab1 UNION SELECT a FROM tab2. " 7.50+
" Use two separate SELECTs on 7.40 and combine in ABAP:
SELECT a FROM tab1 INTO TABLE @DATA(r1).
SELECT a FROM tab2 INTO TABLE @DATA(r2).
DATA(combined) = VALUE itab_type( FOR l1 IN r1 ( l1 )
FOR l2 IN r2 ( l2 ) ).
" Instead of IS INSTANCE OF (7.50+):
IF oref IS INSTANCE OF zcl_my_class. " 7.50+
" 7.40 alternative — use typed CAST with exception handling:
TRY.
DATA(lo) = CAST zcl_my_class( oref ). " 7.40+
CATCH cx_sy_move_cast_error.
" oref is not compatible with zcl_my_class
ENDTRY.
" Instead of CTEs WITH (7.51+):
WITH +cte AS ( SELECT ... ) SELECT ... " 7.51+
" Use subqueries or temporary tables on 7.40
Cause: Table expression access to non-existent line
Solution: Use OPTIONAL, DEFAULT, or check with line_exists( )
Cause: Division by zero Solution: Check divisor before operation
Cause: Invalid substring access or array bounds Solution: Validate offset and length before access
Cause: String cannot be converted to number Solution: Validate input format before conversion
Cause: Dereferencing unbound reference
Solution: Check IS BOUND before dereferencing
All content based on SAP official ABAP Cheat Sheets: