ABAP Select data from SAP table E1FAGLSET into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1FAGLSET 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 E1FAGLSET. 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 E1FAGLSET 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_E1FAGLSET TYPE STANDARD TABLE OF E1FAGLSET,
      WA_E1FAGLSET TYPE E1FAGLSET,
      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: <E1FAGLSET> TYPE E1FAGLSET.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1FAGLSET.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1FAGLSET
  INTO TABLE IT_E1FAGLSET.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1FAGLSET
*  INTO TABLE @DATA(IT_E1FAGLSET2).
*--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_E1FAGLSET INDEX 1 INTO DATA(WA_E1FAGLSET2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1FAGLSET ASSIGNING <E1FAGLSET>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1FAGLSET>-BUZEI = 1.
<E1FAGLSET>-MWSKZ = 1.
<E1FAGLSET>-HKONT = 1.
<E1FAGLSET>-TXGRP = 1.
<E1FAGLSET>-SHKZG = 1.

ENDLOOP.

LOOP AT IT_E1FAGLSET INTO WA_E1FAGLSET.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1FAGLSET-HWBAS, sy-vline,
  WA_E1FAGLSET-FWBAS, sy-vline,
  WA_E1FAGLSET-HWSTE, sy-vline,
  WA_E1FAGLSET-FWSTE, sy-vline,
  WA_E1FAGLSET-KTOSL, sy-vline,
  WA_E1FAGLSET-KNUMH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1FAGLSET 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_E1FAGLSET 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_E1FAGLSET INTO WA_E1FAGLSET.


*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_E1FAGLSET_STR, 
BUZEI TYPE STRING,
MWSKZ TYPE STRING,
HKONT TYPE STRING,
TXGRP TYPE STRING,
SHKZG TYPE STRING,
HWBAS TYPE STRING,
FWBAS TYPE STRING,
HWSTE TYPE STRING,
FWSTE TYPE STRING,
KTOSL TYPE STRING,
KNUMH TYPE STRING,
STCEG TYPE STRING,
EGBLD TYPE STRING,
EGLLD TYPE STRING,
TXJCD TYPE STRING,
H2STE TYPE STRING,
H3STE TYPE STRING,
H2BAS TYPE STRING,
H3BAS TYPE STRING,
KSCHL TYPE STRING,
STMDT TYPE STRING,
STMTI TYPE STRING,
MLDDT TYPE STRING,
KBETR TYPE STRING,
STBKZ TYPE STRING,
LSTML TYPE STRING,
LWSTE TYPE STRING,
LWBAS TYPE STRING,
TXDAT TYPE STRING,
BUPLA TYPE STRING,
TXJDP TYPE STRING,
TXJLV TYPE STRING,
TAXPS TYPE STRING,
TXMOD TYPE STRING,
RESERVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1FAGLSET_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_E1FAGLSET_STR-BUZEI sy-vline 
WA_E1FAGLSET_STR-MWSKZ sy-vline 
WA_E1FAGLSET_STR-HKONT sy-vline 
WA_E1FAGLSET_STR-TXGRP sy-vline 
WA_E1FAGLSET_STR-SHKZG sy-vline 
WA_E1FAGLSET_STR-HWBAS sy-vline 
WA_E1FAGLSET_STR-FWBAS sy-vline 
WA_E1FAGLSET_STR-HWSTE sy-vline 
WA_E1FAGLSET_STR-FWSTE sy-vline 
WA_E1FAGLSET_STR-KTOSL sy-vline 
WA_E1FAGLSET_STR-KNUMH sy-vline 
WA_E1FAGLSET_STR-STCEG sy-vline 
WA_E1FAGLSET_STR-EGBLD sy-vline 
WA_E1FAGLSET_STR-EGLLD sy-vline 
WA_E1FAGLSET_STR-TXJCD sy-vline 
WA_E1FAGLSET_STR-H2STE sy-vline 
WA_E1FAGLSET_STR-H3STE sy-vline 
WA_E1FAGLSET_STR-H2BAS sy-vline 
WA_E1FAGLSET_STR-H3BAS sy-vline 
WA_E1FAGLSET_STR-KSCHL sy-vline 
WA_E1FAGLSET_STR-STMDT sy-vline 
WA_E1FAGLSET_STR-STMTI sy-vline 
WA_E1FAGLSET_STR-MLDDT sy-vline 
WA_E1FAGLSET_STR-KBETR sy-vline 
WA_E1FAGLSET_STR-STBKZ sy-vline 
WA_E1FAGLSET_STR-LSTML sy-vline 
WA_E1FAGLSET_STR-LWSTE sy-vline 
WA_E1FAGLSET_STR-LWBAS sy-vline 
WA_E1FAGLSET_STR-TXDAT sy-vline 
WA_E1FAGLSET_STR-BUPLA sy-vline 
WA_E1FAGLSET_STR-TXJDP sy-vline 
WA_E1FAGLSET_STR-TXJLV sy-vline 
WA_E1FAGLSET_STR-TAXPS sy-vline 
WA_E1FAGLSET_STR-TXMOD sy-vline 
WA_E1FAGLSET_STR-RESERVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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