ABAP Select data from SAP table E1ACPA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1ACPA 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 E1ACPA. 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 E1ACPA 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_E1ACPA TYPE STANDARD TABLE OF E1ACPA,
      WA_E1ACPA TYPE E1ACPA,
      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: <E1ACPA> TYPE E1ACPA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1ACPA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1ACPA
  INTO TABLE IT_E1ACPA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1ACPA
*  INTO TABLE @DATA(IT_E1ACPA2).
*--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_E1ACPA INDEX 1 INTO DATA(WA_E1ACPA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1ACPA ASSIGNING <E1ACPA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1ACPA>-KUNNR = 1.
<E1ACPA>-NAME1 = 1.
<E1ACPA>-NAME2 = 1.
<E1ACPA>-NAME3 = 1.
<E1ACPA>-NAME4 = 1.

ENDLOOP.

LOOP AT IT_E1ACPA INTO WA_E1ACPA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1ACPA-PSTLZ, sy-vline,
  WA_E1ACPA-ORT01, sy-vline,
  WA_E1ACPA-LAND1, sy-vline,
  WA_E1ACPA-STRAS, sy-vline,
  WA_E1ACPA-PFACH, sy-vline,
  WA_E1ACPA-PSTL2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1ACPA 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_E1ACPA 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_E1ACPA INTO WA_E1ACPA.


*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_E1ACPA_STR, 
KUNNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
LAND1 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTL2 TYPE STRING,
PSKTO TYPE STRING,
BANKN TYPE STRING,
BANKL TYPE STRING,
BANKS TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STKZU TYPE STRING,
STKZA TYPE STRING,
REGIO TYPE STRING,
BKONT TYPE STRING,
DTAWS TYPE STRING,
DTAMS TYPE STRING,
SPRAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1ACPA_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_E1ACPA_STR-KUNNR sy-vline 
WA_E1ACPA_STR-NAME1 sy-vline 
WA_E1ACPA_STR-NAME2 sy-vline 
WA_E1ACPA_STR-NAME3 sy-vline 
WA_E1ACPA_STR-NAME4 sy-vline 
WA_E1ACPA_STR-PSTLZ sy-vline 
WA_E1ACPA_STR-ORT01 sy-vline 
WA_E1ACPA_STR-LAND1 sy-vline 
WA_E1ACPA_STR-STRAS sy-vline 
WA_E1ACPA_STR-PFACH sy-vline 
WA_E1ACPA_STR-PSTL2 sy-vline 
WA_E1ACPA_STR-PSKTO sy-vline 
WA_E1ACPA_STR-BANKN sy-vline 
WA_E1ACPA_STR-BANKL sy-vline 
WA_E1ACPA_STR-BANKS sy-vline 
WA_E1ACPA_STR-STCD1 sy-vline 
WA_E1ACPA_STR-STCD2 sy-vline 
WA_E1ACPA_STR-STKZU sy-vline 
WA_E1ACPA_STR-STKZA sy-vline 
WA_E1ACPA_STR-REGIO sy-vline 
WA_E1ACPA_STR-BKONT sy-vline 
WA_E1ACPA_STR-DTAWS sy-vline 
WA_E1ACPA_STR-DTAMS sy-vline 
WA_E1ACPA_STR-SPRAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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