ABAP Select data from SAP table LWM_S_BNKAPP_BATCH_ITEM_MD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LWM_S_BNKAPP_BATCH_ITEM_MD
*  INTO TABLE @DATA(IT_LWM_S_BNKAPP_BATCH_ITEM_MD2).
*--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_LWM_S_BNKAPP_BATCH_ITEM_MD INDEX 1 INTO DATA(WA_LWM_S_BNKAPP_BATCH_ITEM_MD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LWM_S_BNKAPP_BATCH_ITEM_MD>-BATCH_NO = 1.
<LWM_S_BNKAPP_BATCH_ITEM_MD>-ITEM_NO = 1.
<LWM_S_BNKAPP_BATCH_ITEM_MD>-VBLNR = 1.
<LWM_S_BNKAPP_BATCH_ITEM_MD>-AUSFD = 1.
<LWM_S_BNKAPP_BATCH_ITEM_MD>-STATUS_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LWM_S_BNKAPP_BATCH_ITEM_MD-AMOUNT, sy-vline,
  WA_LWM_S_BNKAPP_BATCH_ITEM_MD-CURR, sy-vline,
  WA_LWM_S_BNKAPP_BATCH_ITEM_MD-BATCH_AMOUNT, sy-vline,
  WA_LWM_S_BNKAPP_BATCH_ITEM_MD-BATCH_CURR, sy-vline,
  WA_LWM_S_BNKAPP_BATCH_ITEM_MD-XEINZ, sy-vline,
  WA_LWM_S_BNKAPP_BATCH_ITEM_MD-RPOST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LWM_S_BNKAPP_BATCH_ITEM_MD 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_LWM_S_BNKAPP_BATCH_ITEM_MD 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_LWM_S_BNKAPP_BATCH_ITEM_MD INTO WA_LWM_S_BNKAPP_BATCH_ITEM_MD.


*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.

*Conversion exit ALPHA, internal->external for field VBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LWM_S_BNKAPP_BATCH_ITEM_MD-VBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LWM_S_BNKAPP_BATCH_ITEM_MD-VBLNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_LWM_S_BNKAPP_BATCH_ITEM_MD_STR, 
BATCH_NO TYPE STRING,
ITEM_NO TYPE STRING,
VBLNR TYPE STRING,
AUSFD TYPE STRING,
STATUS_TXT TYPE STRING,
AMOUNT TYPE STRING,
CURR TYPE STRING,
BATCH_AMOUNT TYPE STRING,
BATCH_CURR TYPE STRING,
XEINZ TYPE STRING,
RPOST TYPE STRING,
URGENT TYPE STRING,
REJECTED TYPE STRING,
ZNME1 TYPE STRING,
ZBNKA TYPE STRING,
ZBNKL TYPE STRING,
ZSWIF TYPE STRING,
ZBNKN TYPE STRING,
ZIBAN TYPE STRING,
CITY TYPE STRING,
PCODE TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
STREET_LINE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LWM_S_BNKAPP_BATCH_ITEM_MD_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_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-BATCH_NO sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ITEM_NO sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-VBLNR sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-AUSFD sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-STATUS_TXT sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-AMOUNT sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-CURR sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-BATCH_AMOUNT sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-BATCH_CURR sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-XEINZ sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-RPOST sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-URGENT sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-REJECTED sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZNME1 sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZBNKA sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZBNKL sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZSWIF sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZBNKN sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-ZIBAN sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-CITY sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-PCODE sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-REGION sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-COUNTRY sy-vline 
WA_LWM_S_BNKAPP_BATCH_ITEM_MD_STR-STREET_LINE sy-vline      INTO ld_text SEPARATED BY SPACE.

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