ABAP Select data from SAP table /GBT/E1LFBKM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /GBT/E1LFBKM 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 /GBT/E1LFBKM. 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 /GBT/E1LFBKM 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_/GBT/E1LFBKM TYPE STANDARD TABLE OF /GBT/E1LFBKM,
      WA_/GBT/E1LFBKM TYPE /GBT/E1LFBKM,
      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: </GBT/E1LFBKM> TYPE /GBT/E1LFBKM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/GBT/E1LFBKM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /GBT/E1LFBKM
  INTO TABLE IT_/GBT/E1LFBKM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GBT/E1LFBKM
*  INTO TABLE @DATA(IT_/GBT/E1LFBKM2).
*--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_/GBT/E1LFBKM INDEX 1 INTO DATA(WA_/GBT/E1LFBKM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/GBT/E1LFBKM ASSIGNING </GBT/E1LFBKM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBT/E1LFBKM>-MSGFN = 1.
</GBT/E1LFBKM>-LIFNR = 1.
</GBT/E1LFBKM>-BANKS = 1.
</GBT/E1LFBKM>-BANKL = 1.
</GBT/E1LFBKM>-BANKN = 1.

ENDLOOP.

LOOP AT IT_/GBT/E1LFBKM INTO WA_/GBT/E1LFBKM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GBT/E1LFBKM-BKONT, sy-vline,
  WA_/GBT/E1LFBKM-BVTYP, sy-vline,
  WA_/GBT/E1LFBKM-XEZER, sy-vline,
  WA_/GBT/E1LFBKM-BANKA, sy-vline,
  WA_/GBT/E1LFBKM-PROVZ, sy-vline,
  WA_/GBT/E1LFBKM-STRAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GBT/E1LFBKM 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_/GBT/E1LFBKM 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_/GBT/E1LFBKM INTO WA_/GBT/E1LFBKM.


*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_/GBT/E1LFBKM_STR, 
MSGFN TYPE STRING,
LIFNR TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BVTYP TYPE STRING,
XEZER TYPE STRING,
BANKA TYPE STRING,
PROVZ TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
SWIFT TYPE STRING,
BGRUP TYPE STRING,
XPGRO TYPE STRING,
BNKLZ TYPE STRING,
PSKTO TYPE STRING,
BKREF TYPE STRING,
BRNCH TYPE STRING,
PROV2 TYPE STRING,
STRA2 TYPE STRING,
ORT02 TYPE STRING,
KOINH TYPE STRING,
KOVON TYPE STRING,
KOBIS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GBT/E1LFBKM_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_/GBT/E1LFBKM_STR-MSGFN sy-vline 
WA_/GBT/E1LFBKM_STR-LIFNR sy-vline 
WA_/GBT/E1LFBKM_STR-BANKS sy-vline 
WA_/GBT/E1LFBKM_STR-BANKL sy-vline 
WA_/GBT/E1LFBKM_STR-BANKN sy-vline 
WA_/GBT/E1LFBKM_STR-BKONT sy-vline 
WA_/GBT/E1LFBKM_STR-BVTYP sy-vline 
WA_/GBT/E1LFBKM_STR-XEZER sy-vline 
WA_/GBT/E1LFBKM_STR-BANKA sy-vline 
WA_/GBT/E1LFBKM_STR-PROVZ sy-vline 
WA_/GBT/E1LFBKM_STR-STRAS sy-vline 
WA_/GBT/E1LFBKM_STR-ORT01 sy-vline 
WA_/GBT/E1LFBKM_STR-SWIFT sy-vline 
WA_/GBT/E1LFBKM_STR-BGRUP sy-vline 
WA_/GBT/E1LFBKM_STR-XPGRO sy-vline 
WA_/GBT/E1LFBKM_STR-BNKLZ sy-vline 
WA_/GBT/E1LFBKM_STR-PSKTO sy-vline 
WA_/GBT/E1LFBKM_STR-BKREF sy-vline 
WA_/GBT/E1LFBKM_STR-BRNCH sy-vline 
WA_/GBT/E1LFBKM_STR-PROV2 sy-vline 
WA_/GBT/E1LFBKM_STR-STRA2 sy-vline 
WA_/GBT/E1LFBKM_STR-ORT02 sy-vline 
WA_/GBT/E1LFBKM_STR-KOINH sy-vline 
WA_/GBT/E1LFBKM_STR-KOVON sy-vline 
WA_/GBT/E1LFBKM_STR-KOBIS sy-vline      INTO ld_text SEPARATED BY SPACE.

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