ABAP Select data from SAP table ENT4528 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT4528 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to ENT4528. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the ENT4528 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_ENT4528 TYPE STANDARD TABLE OF ENT4528,
      WA_ENT4528 TYPE ENT4528,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <ENT4528> TYPE ENT4528.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT4528.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT4528
  INTO TABLE IT_ENT4528.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT4528
*  INTO TABLE @DATA(IT_ENT45282).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_ENT4528 INDEX 1 INTO DATA(WA_ENT45282).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT4528 ASSIGNING <ENT4528>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT4528>-MANDT = 1.
<ENT4528>-OBJNR = 1.
<ENT4528>-LEDNR = 1.
<ENT4528>-LDGRP = 1.
<ENT4528>-BUREG = 1.

ENDLOOP.

LOOP AT IT_ENT4528 INTO WA_ENT4528.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT4528-LFDNR, sy-vline,
  WA_ENT4528-PERBZ, sy-vline,
  WA_ENT4528-URZUO, sy-vline,
  WA_ENT4528-GABJA, sy-vline,
  WA_ENT4528-GABPE, sy-vline,
  WA_ENT4528-GBISJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT4528 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_ENT4528 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_ENT4528 INTO WA_ENT4528.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field LEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERBZ, internal->external for field PERBZ
CALL FUNCTION 'CONVERSION_EXIT_PERBZ_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-PERBZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-PERBZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field URZUO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-URZUO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-URZUO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GABJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-GABJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-GABJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GBISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-GBISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-GBISJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-BEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-BEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BETRR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-BETRR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-BETRR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BRTYP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-BRTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-BRTYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BREST
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-BREST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-BREST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ERSJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-ERSJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-ERSJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LETJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-LETJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-LETJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DFREG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-DFREG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-DFREG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBART, internal->external for field KONTY
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-KONTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-KONTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-RECID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4528-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4528-HKONT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ENT4528_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
LEDNR TYPE STRING,
LDGRP TYPE STRING,
BUREG TYPE STRING,
LFDNR TYPE STRING,
PERBZ TYPE STRING,
URZUO TYPE STRING,
GABJA TYPE STRING,
GABPE TYPE STRING,
GBISJ TYPE STRING,
GBISP TYPE STRING,
PROZS TYPE STRING,
AQZIF TYPE STRING,
BMENG TYPE STRING,
BEINH TYPE STRING,
BETRR TYPE STRING,
BWAER TYPE STRING,
BRTYP TYPE STRING,
BREST TYPE STRING,
ERSJA TYPE STRING,
ERSPE TYPE STRING,
LETJA TYPE STRING,
LETPE TYPE STRING,
ZINCL TYPE STRING,
DFREG TYPE STRING,
AVORG TYPE STRING,
KONTY TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
RECID TYPE STRING,
RIFIND TYPE STRING,
GSBER TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT4528_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_ENT4528_STR-MANDT sy-vline 
WA_ENT4528_STR-OBJNR sy-vline 
WA_ENT4528_STR-LEDNR sy-vline 
WA_ENT4528_STR-LDGRP sy-vline 
WA_ENT4528_STR-BUREG sy-vline 
WA_ENT4528_STR-LFDNR sy-vline 
WA_ENT4528_STR-PERBZ sy-vline 
WA_ENT4528_STR-URZUO sy-vline 
WA_ENT4528_STR-GABJA sy-vline 
WA_ENT4528_STR-GABPE sy-vline 
WA_ENT4528_STR-GBISJ sy-vline 
WA_ENT4528_STR-GBISP sy-vline 
WA_ENT4528_STR-PROZS sy-vline 
WA_ENT4528_STR-AQZIF sy-vline 
WA_ENT4528_STR-BMENG sy-vline 
WA_ENT4528_STR-BEINH sy-vline 
WA_ENT4528_STR-BETRR sy-vline 
WA_ENT4528_STR-BWAER sy-vline 
WA_ENT4528_STR-BRTYP sy-vline 
WA_ENT4528_STR-BREST sy-vline 
WA_ENT4528_STR-ERSJA sy-vline 
WA_ENT4528_STR-ERSPE sy-vline 
WA_ENT4528_STR-LETJA sy-vline 
WA_ENT4528_STR-LETPE sy-vline 
WA_ENT4528_STR-ZINCL sy-vline 
WA_ENT4528_STR-DFREG sy-vline 
WA_ENT4528_STR-AVORG sy-vline 
WA_ENT4528_STR-KONTY sy-vline 
WA_ENT4528_STR-AUFPL sy-vline 
WA_ENT4528_STR-APLZL sy-vline 
WA_ENT4528_STR-KDAUF sy-vline 
WA_ENT4528_STR-KDPOS sy-vline 
WA_ENT4528_STR-RECID sy-vline 
WA_ENT4528_STR-RIFIND sy-vline 
WA_ENT4528_STR-GSBER sy-vline 
WA_ENT4528_STR-BUKRS sy-vline 
WA_ENT4528_STR-HKONT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.