ABAP Select data from SAP table RJD_MPS0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJD_MPS0 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_MPS0. 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_MPS0 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_MPS0 TYPE STANDARD TABLE OF RJD_MPS0,
      WA_RJD_MPS0 TYPE RJD_MPS0,
      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_MPS0> TYPE RJD_MPS0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJD_MPS0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJD_MPS0
  INTO TABLE IT_RJD_MPS0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJD_MPS0
*  INTO TABLE @DATA(IT_RJD_MPS02).
*--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_MPS0 INDEX 1 INTO DATA(WA_RJD_MPS02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJD_MPS0 ASSIGNING <RJD_MPS0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJD_MPS0>-DRERZ_0010 = 1.
<RJD_MPS0>-PVA_0010 = 1.
<RJD_MPS0>-BEZTYP_TEXT_1100 = 1.
<RJD_MPS0>-XPROSP_1100 = 1.
<RJD_MPS0>-BEZTYP_1100 = 1.

ENDLOOP.

LOOP AT IT_RJD_MPS0 INTO WA_RJD_MPS0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJD_MPS0-XPROSP_0020, sy-vline,
  WA_RJD_MPS0-BEZTYP_TEXT_0020, sy-vline,
  WA_RJD_MPS0-DRERZ_1000, sy-vline,
  WA_RJD_MPS0-PVA_1000, sy-vline,
  WA_RJD_MPS0-BEZTYP_0015, sy-vline,
  WA_RJD_MPS0-XSOFORTVS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJD_MPS0 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_MPS0 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_MPS0 INTO WA_RJD_MPS0.


*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 DRERZ_0010
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_MPS0-DRERZ_0010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_MPS0-DRERZ_0010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA_0010
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_MPS0-PVA_0010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_MPS0-PVA_0010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ_1000
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_MPS0-DRERZ_1000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_MPS0-DRERZ_1000.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA_1000
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD_MPS0-PVA_1000
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD_MPS0-PVA_1000.
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_MPS0_STR, 
DRERZ_0010 TYPE STRING,
PVA_0010 TYPE STRING,
BEZTYP_TEXT_1100 TYPE STRING,
XPROSP_1100 TYPE STRING,
BEZTYP_1100 TYPE STRING,
XPROSP_0020 TYPE STRING,
BEZTYP_TEXT_0020 TYPE STRING,
DRERZ_1000 TYPE STRING,
PVA_1000 TYPE STRING,
BEZTYP_0015 TYPE STRING,
XSOFORTVS TYPE STRING,
XMITLFGVS TYPE STRING,
XOHNERWVS TYPE STRING,
XVAKONT TYPE STRING,
XPVAKONT TYPE STRING,
XOHNEKONT TYPE STRING,
XERSCHDAT TYPE STRING,
XHEFTNUM TYPE STRING,
XKEINHEFT TYPE STRING,
XVA_EXTERN TYPE STRING,
XMDATA_INR TYPE STRING,
PSREMIND TYPE STRING,
DRERZ_BEZEI40_1000 TYPE STRING,
PVA_LBEZEIINT_1000 TYPE STRING,
GMODUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJD_MPS0_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_MPS0_STR-DRERZ_0010 sy-vline 
WA_RJD_MPS0_STR-PVA_0010 sy-vline 
WA_RJD_MPS0_STR-BEZTYP_TEXT_1100 sy-vline 
WA_RJD_MPS0_STR-XPROSP_1100 sy-vline 
WA_RJD_MPS0_STR-BEZTYP_1100 sy-vline 
WA_RJD_MPS0_STR-XPROSP_0020 sy-vline 
WA_RJD_MPS0_STR-BEZTYP_TEXT_0020 sy-vline 
WA_RJD_MPS0_STR-DRERZ_1000 sy-vline 
WA_RJD_MPS0_STR-PVA_1000 sy-vline 
WA_RJD_MPS0_STR-BEZTYP_0015 sy-vline 
WA_RJD_MPS0_STR-XSOFORTVS sy-vline 
WA_RJD_MPS0_STR-XMITLFGVS sy-vline 
WA_RJD_MPS0_STR-XOHNERWVS sy-vline 
WA_RJD_MPS0_STR-XVAKONT sy-vline 
WA_RJD_MPS0_STR-XPVAKONT sy-vline 
WA_RJD_MPS0_STR-XOHNEKONT sy-vline 
WA_RJD_MPS0_STR-XERSCHDAT sy-vline 
WA_RJD_MPS0_STR-XHEFTNUM sy-vline 
WA_RJD_MPS0_STR-XKEINHEFT sy-vline 
WA_RJD_MPS0_STR-XVA_EXTERN sy-vline 
WA_RJD_MPS0_STR-XMDATA_INR sy-vline 
WA_RJD_MPS0_STR-PSREMIND sy-vline 
WA_RJD_MPS0_STR-DRERZ_BEZEI40_1000 sy-vline 
WA_RJD_MPS0_STR-PVA_LBEZEIINT_1000 sy-vline 
WA_RJD_MPS0_STR-GMODUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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