sap-abap

SAP ABAP Development Skill

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SAP ABAP Development Skill

Related Skills

  • sap-abap-cds: Use when developing CDS views for ABAP-backed Fiori applications or defining data models with annotations

  • sap-btp-cloud-platform: Use when working with ABAP Environment on BTP or deploying ABAP applications to the cloud

  • sap-cap-capire: Use when connecting ABAP systems with CAP applications or integrating with OData services

  • sap-fiori-tools: Use when building Fiori applications with ABAP backends or consuming OData services from ABAP systems

  • sap-api-style: Use when documenting ABAP APIs or following SAP API documentation standards

Version Compatibility

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.

Table of Contents

  • Version Compatibility

  • Quick Reference

  • Bundled Resources

  • Common Patterns

  • Error Catalog

  • Performance Tips

  • Source Documentation

Quick Reference

Data Types and Declarations

" 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.

Internal Tables - Essential Operations

" 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 ).

ABAP SQL Essentials

" 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 acarrid, aconnid, bcarrname FROM zdemo_abap_fli AS a INNER JOIN zdemo_abap_carr AS b ON acarrid = 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.

Constructor Expressions

" 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 ).

Object-Oriented ABAP

" 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.

Exception Handling

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( ) ).

String Processing

" 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.

Dynamic Programming

" 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.

Bundled Resources

This skill includes 28 comprehensive reference files covering all aspects of ABAP development:

Related Skills

  • sap-abap-cds: For CDS view development and ABAP Cloud data modeling

  • sap-btp-cloud-platform: For ABAP Environment setup and BTP deployment

  • sap-cap-capire: For CAP service integration and ABAP system connections

  • sap-fiori-tools: For Fiori application development with ABAP backends

  • sap-api-style: For API documentation standards and best practices

Quick Access

  • Reference Guide: references/skill-reference-guide.md

  • Complete guide to all reference files

  • Internal Tables: references/internal-tables.md

  • Complete table operations

  • ABAP SQL: references/abap-sql.md

  • Comprehensive SQL reference

  • Object Orientation: references/object-orientation.md

  • Classes and interfaces

Development Topics

  • references/constructor-expressions.md

  • VALUE, NEW, COND, REDUCE

  • references/rap-eml.md

  • RAP and EML operations

  • references/cds-views.md

  • CDS view development

  • references/string-processing.md

  • String functions and regex

  • references/unit-testing.md

  • ABAP Unit framework

  • references/performance.md

  • Optimization techniques

  • ... and 18 more specialized references

Common Patterns

Safe Table Access (Avoid Exceptions)

" 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.

Functional Method Chaining

DATA(result) = NEW zcl_builder( ) ->set_name( Test ) ->set_value( 123 ) ->build( ).

FOR Iteration Expressions

" 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 ) ).

ABAP Cloud Compatibility

" 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

ABAP 7.40 Compatibility

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

Error Catalog

CX_SY_ITAB_LINE_NOT_FOUND

Cause: Table expression access to non-existent line Solution: Use OPTIONAL, DEFAULT, or check with line_exists( )

CX_SY_ZERODIVIDE

Cause: Division by zero Solution: Check divisor before operation

CX_SY_RANGE_OUT_OF_BOUNDS

Cause: Invalid substring access or array bounds Solution: Validate offset and length before access

CX_SY_CONVERSION_NO_NUMBER

Cause: String cannot be converted to number Solution: Validate input format before conversion

CX_SY_REF_IS_INITIAL

Cause: Dereferencing unbound reference Solution: Check IS BOUND before dereferencing

Performance Tips

  • Use SORTED/HASHED tables for frequent key access

  • Prefer field symbols over work areas in loops for modification

  • Use PACKAGE SIZE for large SELECT results

  • Avoid SELECT in loops - use FOR ALL ENTRIES or JOINs

  • Use secondary keys for different access patterns

  • Minimize CORRESPONDING calls - explicit assignments are faster

Source Documentation

All content based on SAP official ABAP Cheat Sheets:

Source Transparency

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