ABAP Select data from SAP table RJD_BZUS_MB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJD_BZUS_MB
*  INTO TABLE @DATA(IT_RJD_BZUS_MB2).
*--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_RJD_BZUS_MB INDEX 1 INTO DATA(WA_RJD_BZUS_MB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJD_BZUS_MB>-BEZTYP = 1.
<RJD_BZUS_MB>-DRERMT = 1.
<RJD_BZUS_MB>-PVAMIT = 1.
<RJD_BZUS_MB>-GUEVON = 1.
<RJD_BZUS_MB>-GUEBIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJD_BZUS_MB-LFARTA, sy-vline,
  WA_RJD_BZUS_MB-BEZTMT, sy-vline,
  WA_RJD_BZUS_MB-XCHECKBEZP, sy-vline,
  WA_RJD_BZUS_MB-XMBFAKTURA, sy-vline,
  WA_RJD_BZUS_MB-XMBCORR, sy-vline,
  WA_RJD_BZUS_MB-XMBTMC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJD_BZUS_MB 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_RJD_BZUS_MB 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_RJD_BZUS_MB INTO WA_RJD_BZUS_MB.


*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 DRERMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_BZUS_MB-DRERMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_BZUS_MB-DRERMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVAMIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_BZUS_MB-PVAMIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_BZUS_MB-PVAMIT.
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_RJD_BZUS_MB_STR, 
BEZTYP TYPE STRING,
DRERMT TYPE STRING,
PVAMIT TYPE STRING,
GUEVON TYPE STRING,
GUEBIS TYPE STRING,
LFARTA TYPE STRING,
BEZTMT TYPE STRING,
XCHECKBEZP TYPE STRING,
XMBFAKTURA TYPE STRING,
XMBCORR TYPE STRING,
XMBTMC TYPE STRING,
MARK TYPE STRING,
NEUE_ZEILE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJD_BZUS_MB_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_RJD_BZUS_MB_STR-BEZTYP sy-vline 
WA_RJD_BZUS_MB_STR-DRERMT sy-vline 
WA_RJD_BZUS_MB_STR-PVAMIT sy-vline 
WA_RJD_BZUS_MB_STR-GUEVON sy-vline 
WA_RJD_BZUS_MB_STR-GUEBIS sy-vline 
WA_RJD_BZUS_MB_STR-LFARTA sy-vline 
WA_RJD_BZUS_MB_STR-BEZTMT sy-vline 
WA_RJD_BZUS_MB_STR-XCHECKBEZP sy-vline 
WA_RJD_BZUS_MB_STR-XMBFAKTURA sy-vline 
WA_RJD_BZUS_MB_STR-XMBCORR sy-vline 
WA_RJD_BZUS_MB_STR-XMBTMC sy-vline 
WA_RJD_BZUS_MB_STR-MARK sy-vline 
WA_RJD_BZUS_MB_STR-NEUE_ZEILE sy-vline      INTO ld_text SEPARATED BY SPACE.

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