ABAP Select data from SAP table RMPUIOD_P into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMPUIOD_P
*  INTO TABLE @DATA(IT_RMPUIOD_P2).
*--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_RMPUIOD_P INDEX 1 INTO DATA(WA_RMPUIOD_P2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMPUIOD_P>-WERKS = 1.
<RMPUIOD_P>-MATNR = 1.
<RMPUIOD_P>-MAKTX = 1.
<RMPUIOD_P>-LGORT = 1.
<RMPUIOD_P>-WMPPI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMPUIOD_P-PRVBE, sy-vline,
  WA_RMPUIOD_P-KANBN, sy-vline,
  WA_RMPUIOD_P-DISKZ, sy-vline,
  WA_RMPUIOD_P-XCHPF, sy-vline,
  WA_RMPUIOD_P-XCHAR, sy-vline,
  WA_RMPUIOD_P-BWTTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMPUIOD_P 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_RMPUIOD_P 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_RMPUIOD_P INTO WA_RMPUIOD_P.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RMPUIOD_P-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPUIOD_P-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_RMPUIOD_P-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPUIOD_P-PSPEL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field BAUGR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RMPUIOD_P-BAUGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPUIOD_P-BAUGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMPUIOD_P-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPUIOD_P-ERFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RMPUIOD_P-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPUIOD_P-MEINS.
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_RMPUIOD_P_STR, 
WERKS TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
LGORT TYPE STRING,
WMPPI TYPE STRING,
PRVBE TYPE STRING,
KANBN TYPE STRING,
DISKZ TYPE STRING,
XCHPF TYPE STRING,
XCHAR TYPE STRING,
BWTTY TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
BERKZ TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
BDART TYPE STRING,
RQNUM TYPE STRING,
RQITM TYPE STRING,
LGPBE TYPE STRING,
LMINB TYPE STRING,
LBSTF TYPE STRING,
ARBPL TYPE STRING,
ARBTX TYPE STRING,
PLNUM TYPE STRING,
AUFNR TYPE STRING,
DAUTY TYPE STRING,
DISPO TYPE STRING,
FEVOR TYPE STRING,
VERID TYPE STRING,
MDV01 TYPE STRING,
MDV02 TYPE STRING,
LINTX TYPE STRING,
BAUGR TYPE STRING,
BAUTX TYPE STRING,
BDTER TYPE STRING,
SBTER TYPE STRING,
BDZTP TYPE STRING,
NBDMG TYPE STRING,
AVAIL TYPE STRING,
AVAIL_TOT TYPE STRING,
AVOVL TYPE STRING,
MISSQ TYPE STRING,
EQUAN TYPE STRING,
RMISS TYPE STRING,
EQUAN_BEA TYPE STRING,
ERFME TYPE STRING,
MARK TYPE STRING,
DETAIL_ICON TYPE STRING,
MEINS TYPE STRING,
DELB0 TYPE STRING,
NUMMER_DELB0 TYPE STRING,
LIGHT_ICON TYPE STRING,
GRP_ID TYPE STRING,
REQ_ID TYPE STRING,
REQ_POS TYPE STRING,
SORT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMPUIOD_P_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_RMPUIOD_P_STR-WERKS sy-vline 
WA_RMPUIOD_P_STR-MATNR sy-vline 
WA_RMPUIOD_P_STR-MAKTX sy-vline 
WA_RMPUIOD_P_STR-LGORT sy-vline 
WA_RMPUIOD_P_STR-WMPPI sy-vline 
WA_RMPUIOD_P_STR-PRVBE sy-vline 
WA_RMPUIOD_P_STR-KANBN sy-vline 
WA_RMPUIOD_P_STR-DISKZ sy-vline 
WA_RMPUIOD_P_STR-XCHPF sy-vline 
WA_RMPUIOD_P_STR-XCHAR sy-vline 
WA_RMPUIOD_P_STR-BWTTY sy-vline 
WA_RMPUIOD_P_STR-CHARG sy-vline 
WA_RMPUIOD_P_STR-SOBKZ sy-vline 
WA_RMPUIOD_P_STR-LIFNR sy-vline 
WA_RMPUIOD_P_STR-KDAUF sy-vline 
WA_RMPUIOD_P_STR-KDPOS sy-vline 
WA_RMPUIOD_P_STR-PSPEL sy-vline 
WA_RMPUIOD_P_STR-BERKZ sy-vline 
WA_RMPUIOD_P_STR-LGNUM sy-vline 
WA_RMPUIOD_P_STR-LGTYP sy-vline 
WA_RMPUIOD_P_STR-LGPLA sy-vline 
WA_RMPUIOD_P_STR-RSNUM sy-vline 
WA_RMPUIOD_P_STR-RSPOS sy-vline 
WA_RMPUIOD_P_STR-RSART sy-vline 
WA_RMPUIOD_P_STR-BDART sy-vline 
WA_RMPUIOD_P_STR-RQNUM sy-vline 
WA_RMPUIOD_P_STR-RQITM sy-vline 
WA_RMPUIOD_P_STR-LGPBE sy-vline 
WA_RMPUIOD_P_STR-LMINB sy-vline 
WA_RMPUIOD_P_STR-LBSTF sy-vline 
WA_RMPUIOD_P_STR-ARBPL sy-vline 
WA_RMPUIOD_P_STR-ARBTX sy-vline 
WA_RMPUIOD_P_STR-PLNUM sy-vline 
WA_RMPUIOD_P_STR-AUFNR sy-vline 
WA_RMPUIOD_P_STR-DAUTY sy-vline 
WA_RMPUIOD_P_STR-DISPO sy-vline 
WA_RMPUIOD_P_STR-FEVOR sy-vline 
WA_RMPUIOD_P_STR-VERID sy-vline 
WA_RMPUIOD_P_STR-MDV01 sy-vline 
WA_RMPUIOD_P_STR-MDV02 sy-vline 
WA_RMPUIOD_P_STR-LINTX sy-vline 
WA_RMPUIOD_P_STR-BAUGR sy-vline 
WA_RMPUIOD_P_STR-BAUTX sy-vline 
WA_RMPUIOD_P_STR-BDTER sy-vline 
WA_RMPUIOD_P_STR-SBTER sy-vline 
WA_RMPUIOD_P_STR-BDZTP sy-vline 
WA_RMPUIOD_P_STR-NBDMG sy-vline 
WA_RMPUIOD_P_STR-AVAIL sy-vline 
WA_RMPUIOD_P_STR-AVAIL_TOT sy-vline 
WA_RMPUIOD_P_STR-AVOVL sy-vline 
WA_RMPUIOD_P_STR-MISSQ sy-vline 
WA_RMPUIOD_P_STR-EQUAN sy-vline 
WA_RMPUIOD_P_STR-RMISS sy-vline 
WA_RMPUIOD_P_STR-EQUAN_BEA sy-vline 
WA_RMPUIOD_P_STR-ERFME sy-vline 
WA_RMPUIOD_P_STR-MARK sy-vline 
WA_RMPUIOD_P_STR-DETAIL_ICON sy-vline 
WA_RMPUIOD_P_STR-MEINS sy-vline 
WA_RMPUIOD_P_STR-DELB0 sy-vline 
WA_RMPUIOD_P_STR-NUMMER_DELB0 sy-vline 
WA_RMPUIOD_P_STR-LIGHT_ICON sy-vline 
WA_RMPUIOD_P_STR-GRP_ID sy-vline 
WA_RMPUIOD_P_STR-REQ_ID sy-vline 
WA_RMPUIOD_P_STR-REQ_POS sy-vline 
WA_RMPUIOD_P_STR-SORT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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