ABAP Select data from SAP table E1FISTLM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1FISTLM 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 E1FISTLM. 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 E1FISTLM 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_E1FISTLM TYPE STANDARD TABLE OF E1FISTLM,
      WA_E1FISTLM TYPE E1FISTLM,
      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: <E1FISTLM> TYPE E1FISTLM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1FISTLM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1FISTLM
  INTO TABLE IT_E1FISTLM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1FISTLM
*  INTO TABLE @DATA(IT_E1FISTLM2).
*--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_E1FISTLM INDEX 1 INTO DATA(WA_E1FISTLM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1FISTLM ASSIGNING <E1FISTLM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1FISTLM>-MSGFN = 1.
<E1FISTLM>-FIKRS = 1.
<E1FISTLM>-FICTR = 1.
<E1FISTLM>-DATBIS = 1.
<E1FISTLM>-DATAB = 1.

ENDLOOP.

LOOP AT IT_E1FISTLM INTO WA_E1FISTLM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1FISTLM-CTR_OBJNR, sy-vline,
  WA_E1FISTLM-ERFDAT, sy-vline,
  WA_E1FISTLM-ERFNAME, sy-vline,
  WA_E1FISTLM-AENDAT, sy-vline,
  WA_E1FISTLM-AENNAME, sy-vline,
  WA_E1FISTLM-BOSS_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1FISTLM 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_E1FISTLM 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_E1FISTLM INTO WA_E1FISTLM.


*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_E1FISTLM_STR, 
MSGFN TYPE STRING,
FIKRS TYPE STRING,
FICTR TYPE STRING,
DATBIS TYPE STRING,
DATAB TYPE STRING,
CTR_OBJNR TYPE STRING,
ERFDAT TYPE STRING,
ERFNAME TYPE STRING,
AENDAT TYPE STRING,
AENNAME TYPE STRING,
BOSS_CODE TYPE STRING,
WAERS TYPE STRING,
WAERS_ISO TYPE STRING,
BOSSOT TYPE STRING,
BOSSID TYPE STRING,
BOSSNAME TYPE STRING,
FINCODE TYPE STRING,
AUGRP TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
LOGSYSTEM TYPE STRING,
DECKUNG TYPE STRING,
ANREDE TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
STRASSE TYPE STRING,
POSTLZ TYPE STRING,
ORT TYPE STRING,
ORTSTEIL TYPE STRING,
POSTFACH TYPE STRING,
POSTLZFACH TYPE STRING,
LAND1 TYPE STRING,
LAND_ISO TYPE STRING,
REGION TYPE STRING,
SPRAS TYPE STRING,
SPRAS_ISO TYPE STRING,
TELEBOX TYPE STRING,
TELEFON1 TYPE STRING,
TELEFON2 TYPE STRING,
TELEFAX TYPE STRING,
TELETEXT TYPE STRING,
TELEX TYPE STRING,
DATENLTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1FISTLM_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_E1FISTLM_STR-MSGFN sy-vline 
WA_E1FISTLM_STR-FIKRS sy-vline 
WA_E1FISTLM_STR-FICTR sy-vline 
WA_E1FISTLM_STR-DATBIS sy-vline 
WA_E1FISTLM_STR-DATAB sy-vline 
WA_E1FISTLM_STR-CTR_OBJNR sy-vline 
WA_E1FISTLM_STR-ERFDAT sy-vline 
WA_E1FISTLM_STR-ERFNAME sy-vline 
WA_E1FISTLM_STR-AENDAT sy-vline 
WA_E1FISTLM_STR-AENNAME sy-vline 
WA_E1FISTLM_STR-BOSS_CODE sy-vline 
WA_E1FISTLM_STR-WAERS sy-vline 
WA_E1FISTLM_STR-WAERS_ISO sy-vline 
WA_E1FISTLM_STR-BOSSOT sy-vline 
WA_E1FISTLM_STR-BOSSID sy-vline 
WA_E1FISTLM_STR-BOSSNAME sy-vline 
WA_E1FISTLM_STR-FINCODE sy-vline 
WA_E1FISTLM_STR-AUGRP sy-vline 
WA_E1FISTLM_STR-BUKRS sy-vline 
WA_E1FISTLM_STR-GSBER sy-vline 
WA_E1FISTLM_STR-LOGSYSTEM sy-vline 
WA_E1FISTLM_STR-DECKUNG sy-vline 
WA_E1FISTLM_STR-ANREDE sy-vline 
WA_E1FISTLM_STR-NAME1 sy-vline 
WA_E1FISTLM_STR-NAME2 sy-vline 
WA_E1FISTLM_STR-NAME3 sy-vline 
WA_E1FISTLM_STR-NAME4 sy-vline 
WA_E1FISTLM_STR-STRASSE sy-vline 
WA_E1FISTLM_STR-POSTLZ sy-vline 
WA_E1FISTLM_STR-ORT sy-vline 
WA_E1FISTLM_STR-ORTSTEIL sy-vline 
WA_E1FISTLM_STR-POSTFACH sy-vline 
WA_E1FISTLM_STR-POSTLZFACH sy-vline 
WA_E1FISTLM_STR-LAND1 sy-vline 
WA_E1FISTLM_STR-LAND_ISO sy-vline 
WA_E1FISTLM_STR-REGION sy-vline 
WA_E1FISTLM_STR-SPRAS sy-vline 
WA_E1FISTLM_STR-SPRAS_ISO sy-vline 
WA_E1FISTLM_STR-TELEBOX sy-vline 
WA_E1FISTLM_STR-TELEFON1 sy-vline 
WA_E1FISTLM_STR-TELEFON2 sy-vline 
WA_E1FISTLM_STR-TELEFAX sy-vline 
WA_E1FISTLM_STR-TELETEXT sy-vline 
WA_E1FISTLM_STR-TELEX sy-vline 
WA_E1FISTLM_STR-DATENLTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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