ABAP Select data from SAP table J_1BDMEXQ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1BDMEXQ 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_1BDMEXQ. 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_1BDMEXQ 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_1BDMEXQ TYPE STANDARD TABLE OF J_1BDMEXQ,
      WA_J_1BDMEXQ TYPE J_1BDMEXQ,
      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_1BDMEXQ> TYPE J_1BDMEXQ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1BDMEXQ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1BDMEXQ
  INTO TABLE IT_J_1BDMEXQ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1BDMEXQ
*  INTO TABLE @DATA(IT_J_1BDMEXQ2).
*--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_1BDMEXQ INDEX 1 INTO DATA(WA_J_1BDMEXQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1BDMEXQ ASSIGNING <J_1BDMEXQ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1BDMEXQ>-Q01 = 1.
<J_1BDMEXQ>-Q02 = 1.
<J_1BDMEXQ>-Q03 = 1.
<J_1BDMEXQ>-Q04 = 1.
<J_1BDMEXQ>-Q05 = 1.

ENDLOOP.

LOOP AT IT_J_1BDMEXQ INTO WA_J_1BDMEXQ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1BDMEXQ-Q06, sy-vline,
  WA_J_1BDMEXQ-Q07, sy-vline,
  WA_J_1BDMEXQ-Q08, sy-vline,
  WA_J_1BDMEXQ-Q09, sy-vline,
  WA_J_1BDMEXQ-Q10, sy-vline,
  WA_J_1BDMEXQ-Q11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1BDMEXQ 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_1BDMEXQ 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_1BDMEXQ INTO WA_J_1BDMEXQ.


*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_1BDMEXQ_STR, 
Q01 TYPE STRING,
Q02 TYPE STRING,
Q03 TYPE STRING,
Q04 TYPE STRING,
Q05 TYPE STRING,
Q06 TYPE STRING,
Q07 TYPE STRING,
Q08 TYPE STRING,
Q09 TYPE STRING,
Q10 TYPE STRING,
Q11 TYPE STRING,
Q12 TYPE STRING,
Q13 TYPE STRING,
Q14 TYPE STRING,
Q15 TYPE STRING,
Q16 TYPE STRING,
Q17 TYPE STRING,
Q18 TYPE STRING,
Q19 TYPE STRING,
Q20 TYPE STRING,
Q21 TYPE STRING,
Q22 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1BDMEXQ_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_1BDMEXQ_STR-Q01 sy-vline 
WA_J_1BDMEXQ_STR-Q02 sy-vline 
WA_J_1BDMEXQ_STR-Q03 sy-vline 
WA_J_1BDMEXQ_STR-Q04 sy-vline 
WA_J_1BDMEXQ_STR-Q05 sy-vline 
WA_J_1BDMEXQ_STR-Q06 sy-vline 
WA_J_1BDMEXQ_STR-Q07 sy-vline 
WA_J_1BDMEXQ_STR-Q08 sy-vline 
WA_J_1BDMEXQ_STR-Q09 sy-vline 
WA_J_1BDMEXQ_STR-Q10 sy-vline 
WA_J_1BDMEXQ_STR-Q11 sy-vline 
WA_J_1BDMEXQ_STR-Q12 sy-vline 
WA_J_1BDMEXQ_STR-Q13 sy-vline 
WA_J_1BDMEXQ_STR-Q14 sy-vline 
WA_J_1BDMEXQ_STR-Q15 sy-vline 
WA_J_1BDMEXQ_STR-Q16 sy-vline 
WA_J_1BDMEXQ_STR-Q17 sy-vline 
WA_J_1BDMEXQ_STR-Q18 sy-vline 
WA_J_1BDMEXQ_STR-Q19 sy-vline 
WA_J_1BDMEXQ_STR-Q20 sy-vline 
WA_J_1BDMEXQ_STR-Q21 sy-vline 
WA_J_1BDMEXQ_STR-Q22 sy-vline      INTO ld_text SEPARATED BY SPACE.

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