ABAP Select data from SAP table E1ACA2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1ACA2 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 E1ACA2. 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 E1ACA2 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_E1ACA2 TYPE STANDARD TABLE OF E1ACA2,
      WA_E1ACA2 TYPE E1ACA2,
      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: <E1ACA2> TYPE E1ACA2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1ACA2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1ACA2
  INTO TABLE IT_E1ACA2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1ACA2
*  INTO TABLE @DATA(IT_E1ACA22).
*--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_E1ACA2 INDEX 1 INTO DATA(WA_E1ACA22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1ACA2 ASSIGNING <E1ACA2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1ACA2>-BUKRS = 1.
<E1ACA2>-HKONT = 1.
<E1ACA2>-BUDAT = 1.
<E1ACA2>-SHKZG = 1.
<E1ACA2>-LOGVO = 1.

ENDLOOP.

LOOP AT IT_E1ACA2 INTO WA_E1ACA2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1ACA2-KSTAT, sy-vline,
  WA_E1ACA2-BELNR, sy-vline,
  WA_E1ACA2-GJAHR, sy-vline,
  WA_E1ACA2-MONAT, sy-vline,
  WA_E1ACA2-BLART, sy-vline,
  WA_E1ACA2-XREF1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1ACA2 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_E1ACA2 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_E1ACA2 INTO WA_E1ACA2.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_E1ACA2_STR, 
BUKRS TYPE STRING,
HKONT TYPE STRING,
BUDAT TYPE STRING,
SHKZG TYPE STRING,
LOGVO TYPE STRING,
KSTAT TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
BLART TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
KTOSL TYPE STRING,
KOART TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
SGTXT TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
BPMNG TYPE STRING,
BPRME TYPE STRING,
AUFNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
BZDAT TYPE STRING,
MATNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
WERKS TYPE STRING,
PARGB TYPE STRING,
HRKFT TYPE STRING,
HKMAT TYPE STRING,
KSTRG TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
AUFPS TYPE STRING,
FIKRS TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
VBUND TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
VPTNR TYPE STRING,
KZBEW TYPE STRING,
PSTYP TYPE STRING,
XUMBW TYPE STRING,
MTART TYPE STRING,
SPART TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
XPKON TYPE STRING,
ERFME TYPE STRING,
ERFMG TYPE STRING,
MATNR_EXTERNAL TYPE STRING,
MATNR_VERSION TYPE STRING,
MATNR_GUID TYPE STRING,
BUDGET_PERIOD TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1ACA2_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_E1ACA2_STR-BUKRS sy-vline 
WA_E1ACA2_STR-HKONT sy-vline 
WA_E1ACA2_STR-BUDAT sy-vline 
WA_E1ACA2_STR-SHKZG sy-vline 
WA_E1ACA2_STR-LOGVO sy-vline 
WA_E1ACA2_STR-KSTAT sy-vline 
WA_E1ACA2_STR-BELNR sy-vline 
WA_E1ACA2_STR-GJAHR sy-vline 
WA_E1ACA2_STR-MONAT sy-vline 
WA_E1ACA2_STR-BLART sy-vline 
WA_E1ACA2_STR-XREF1 sy-vline 
WA_E1ACA2_STR-XREF2 sy-vline 
WA_E1ACA2_STR-KTOSL sy-vline 
WA_E1ACA2_STR-KOART sy-vline 
WA_E1ACA2_STR-KUNNR sy-vline 
WA_E1ACA2_STR-LIFNR sy-vline 
WA_E1ACA2_STR-SGTXT sy-vline 
WA_E1ACA2_STR-GSBER sy-vline 
WA_E1ACA2_STR-KOSTL sy-vline 
WA_E1ACA2_STR-BPMNG sy-vline 
WA_E1ACA2_STR-BPRME sy-vline 
WA_E1ACA2_STR-AUFNR sy-vline 
WA_E1ACA2_STR-ANLN1 sy-vline 
WA_E1ACA2_STR-ANLN2 sy-vline 
WA_E1ACA2_STR-BZDAT sy-vline 
WA_E1ACA2_STR-MATNR sy-vline 
WA_E1ACA2_STR-MENGE sy-vline 
WA_E1ACA2_STR-MEINS sy-vline 
WA_E1ACA2_STR-WERKS sy-vline 
WA_E1ACA2_STR-PARGB sy-vline 
WA_E1ACA2_STR-HRKFT sy-vline 
WA_E1ACA2_STR-HKMAT sy-vline 
WA_E1ACA2_STR-KSTRG sy-vline 
WA_E1ACA2_STR-PRCTR sy-vline 
WA_E1ACA2_STR-PPRCTR sy-vline 
WA_E1ACA2_STR-PS_PSP_PNR sy-vline 
WA_E1ACA2_STR-NPLNR sy-vline 
WA_E1ACA2_STR-AUFPL sy-vline 
WA_E1ACA2_STR-AUFPS sy-vline 
WA_E1ACA2_STR-FIKRS sy-vline 
WA_E1ACA2_STR-FIPOS sy-vline 
WA_E1ACA2_STR-FISTL sy-vline 
WA_E1ACA2_STR-GEBER sy-vline 
WA_E1ACA2_STR-KDAUF sy-vline 
WA_E1ACA2_STR-KDPOS sy-vline 
WA_E1ACA2_STR-VBUND sy-vline 
WA_E1ACA2_STR-BWKEY sy-vline 
WA_E1ACA2_STR-BWTAR sy-vline 
WA_E1ACA2_STR-EBELN sy-vline 
WA_E1ACA2_STR-EBELP sy-vline 
WA_E1ACA2_STR-ZEKKN sy-vline 
WA_E1ACA2_STR-VPTNR sy-vline 
WA_E1ACA2_STR-KZBEW sy-vline 
WA_E1ACA2_STR-PSTYP sy-vline 
WA_E1ACA2_STR-XUMBW sy-vline 
WA_E1ACA2_STR-MTART sy-vline 
WA_E1ACA2_STR-SPART sy-vline 
WA_E1ACA2_STR-BRGEW sy-vline 
WA_E1ACA2_STR-GEWEI sy-vline 
WA_E1ACA2_STR-VOLUM sy-vline 
WA_E1ACA2_STR-VOLEH sy-vline 
WA_E1ACA2_STR-XPKON sy-vline 
WA_E1ACA2_STR-ERFME sy-vline 
WA_E1ACA2_STR-ERFMG sy-vline 
WA_E1ACA2_STR-MATNR_EXTERNAL sy-vline 
WA_E1ACA2_STR-MATNR_VERSION sy-vline 
WA_E1ACA2_STR-MATNR_GUID sy-vline 
WA_E1ACA2_STR-BUDGET_PERIOD sy-vline 
WA_E1ACA2_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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