ABAP Select data from SAP table J_1BDMEXG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1BDMEXG 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 J_1BDMEXG. 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 J_1BDMEXG 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_J_1BDMEXG TYPE STANDARD TABLE OF J_1BDMEXG,
      WA_J_1BDMEXG TYPE J_1BDMEXG,
      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: <J_1BDMEXG> TYPE J_1BDMEXG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1BDMEXG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1BDMEXG
  INTO TABLE IT_J_1BDMEXG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1BDMEXG
*  INTO TABLE @DATA(IT_J_1BDMEXG2).
*--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_J_1BDMEXG INDEX 1 INTO DATA(WA_J_1BDMEXG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1BDMEXG ASSIGNING <J_1BDMEXG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1BDMEXG>-G01 = 1.
<J_1BDMEXG>-G02 = 1.
<J_1BDMEXG>-G03 = 1.
<J_1BDMEXG>-G04 = 1.
<J_1BDMEXG>-G05 = 1.

ENDLOOP.

LOOP AT IT_J_1BDMEXG INTO WA_J_1BDMEXG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1BDMEXG-G06, sy-vline,
  WA_J_1BDMEXG-G07, sy-vline,
  WA_J_1BDMEXG-G08, sy-vline,
  WA_J_1BDMEXG-G09, sy-vline,
  WA_J_1BDMEXG-G10, sy-vline,
  WA_J_1BDMEXG-G11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1BDMEXG 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_J_1BDMEXG 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_J_1BDMEXG INTO WA_J_1BDMEXG.


*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_J_1BDMEXG_STR, 
G01 TYPE STRING,
G02 TYPE STRING,
G03 TYPE STRING,
G04 TYPE STRING,
G05 TYPE STRING,
G06 TYPE STRING,
G07 TYPE STRING,
G08 TYPE STRING,
G09 TYPE STRING,
G10 TYPE STRING,
G11 TYPE STRING,
G12 TYPE STRING,
G13 TYPE STRING,
G14 TYPE STRING,
G15 TYPE STRING,
G16 TYPE STRING,
G17 TYPE STRING,
G18 TYPE STRING,
G19 TYPE STRING,
G20 TYPE STRING,
G21 TYPE STRING,
G23 TYPE STRING,
G24 TYPE STRING,
G25 TYPE STRING,
G26 TYPE STRING,
G27 TYPE STRING,
G28 TYPE STRING,
G29 TYPE STRING,
G30 TYPE STRING,
G31 TYPE STRING,
G32 TYPE STRING,
G33 TYPE STRING,
G34 TYPE STRING,
G35 TYPE STRING,
G36 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1BDMEXG_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_J_1BDMEXG_STR-G01 sy-vline 
WA_J_1BDMEXG_STR-G02 sy-vline 
WA_J_1BDMEXG_STR-G03 sy-vline 
WA_J_1BDMEXG_STR-G04 sy-vline 
WA_J_1BDMEXG_STR-G05 sy-vline 
WA_J_1BDMEXG_STR-G06 sy-vline 
WA_J_1BDMEXG_STR-G07 sy-vline 
WA_J_1BDMEXG_STR-G08 sy-vline 
WA_J_1BDMEXG_STR-G09 sy-vline 
WA_J_1BDMEXG_STR-G10 sy-vline 
WA_J_1BDMEXG_STR-G11 sy-vline 
WA_J_1BDMEXG_STR-G12 sy-vline 
WA_J_1BDMEXG_STR-G13 sy-vline 
WA_J_1BDMEXG_STR-G14 sy-vline 
WA_J_1BDMEXG_STR-G15 sy-vline 
WA_J_1BDMEXG_STR-G16 sy-vline 
WA_J_1BDMEXG_STR-G17 sy-vline 
WA_J_1BDMEXG_STR-G18 sy-vline 
WA_J_1BDMEXG_STR-G19 sy-vline 
WA_J_1BDMEXG_STR-G20 sy-vline 
WA_J_1BDMEXG_STR-G21 sy-vline 
WA_J_1BDMEXG_STR-G23 sy-vline 
WA_J_1BDMEXG_STR-G24 sy-vline 
WA_J_1BDMEXG_STR-G25 sy-vline 
WA_J_1BDMEXG_STR-G26 sy-vline 
WA_J_1BDMEXG_STR-G27 sy-vline 
WA_J_1BDMEXG_STR-G28 sy-vline 
WA_J_1BDMEXG_STR-G29 sy-vline 
WA_J_1BDMEXG_STR-G30 sy-vline 
WA_J_1BDMEXG_STR-G31 sy-vline 
WA_J_1BDMEXG_STR-G32 sy-vline 
WA_J_1BDMEXG_STR-G33 sy-vline 
WA_J_1BDMEXG_STR-G34 sy-vline 
WA_J_1BDMEXG_STR-G35 sy-vline 
WA_J_1BDMEXG_STR-G36 sy-vline      INTO ld_text SEPARATED BY SPACE.

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