ABAP Select data from SAP table RMXTW_PRODH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMXTW_PRODH
*  INTO TABLE @DATA(IT_RMXTW_PRODH2).
*--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_RMXTW_PRODH INDEX 1 INTO DATA(WA_RMXTW_PRODH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMXTW_PRODH>-MANDT = 1.
<RMXTW_PRODH>-MATNR = 1.
<RMXTW_PRODH>-PRDHA = 1.
<RMXTW_PRODH>-TRIALID = 1.
<RMXTW_PRODH>-TRIALTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMXTW_PRODH-OBJNR, sy-vline,
  WA_RMXTW_PRODH-TRIALNAME, sy-vline,
  WA_RMXTW_PRODH-PRODUCT, sy-vline,
  WA_RMXTW_PRODH-PLANT, sy-vline,
  WA_RMXTW_PRODH-PROJECT, sy-vline,
  WA_RMXTW_PRODH-BATCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMXTW_PRODH 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_RMXTW_PRODH 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_RMXTW_PRODH INTO WA_RMXTW_PRODH.


*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_RMXTW_PRODH-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTW_PRODH-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field RCP_AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXTW_PRODH-RCP_AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTW_PRODH-RCP_AENNR.
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_RMXTW_PRODH_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
PRDHA TYPE STRING,
TRIALID TYPE STRING,
TRIALTYPE TYPE STRING,
OBJNR TYPE STRING,
TRIALNAME TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
PROJECT TYPE STRING,
BATCH TYPE STRING,
LINE TYPE STRING,
RESPONSIBLE TYPE STRING,
ORGID TYPE STRING,
SOURCE_RCP TYPE STRING,
RCP_AENNR TYPE STRING,
DAY_REQ_START TYPE STRING,
DAY_REQ_END TYPE STRING,
DAY_SHD_START TYPE STRING,
DAY_SHD_END TYPE STRING,
DAY_EXE_START TYPE STRING,
DAY_EXE_END TYPE STRING,
ADM_CREA_BY TYPE STRING,
ADM_CREA_AT TYPE STRING,
ADM_CHG_BY TYPE STRING,
ADM_CHG_AT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMXTW_PRODH_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_RMXTW_PRODH_STR-MANDT sy-vline 
WA_RMXTW_PRODH_STR-MATNR sy-vline 
WA_RMXTW_PRODH_STR-PRDHA sy-vline 
WA_RMXTW_PRODH_STR-TRIALID sy-vline 
WA_RMXTW_PRODH_STR-TRIALTYPE sy-vline 
WA_RMXTW_PRODH_STR-OBJNR sy-vline 
WA_RMXTW_PRODH_STR-TRIALNAME sy-vline 
WA_RMXTW_PRODH_STR-PRODUCT sy-vline 
WA_RMXTW_PRODH_STR-PLANT sy-vline 
WA_RMXTW_PRODH_STR-PROJECT sy-vline 
WA_RMXTW_PRODH_STR-BATCH sy-vline 
WA_RMXTW_PRODH_STR-LINE sy-vline 
WA_RMXTW_PRODH_STR-RESPONSIBLE sy-vline 
WA_RMXTW_PRODH_STR-ORGID sy-vline 
WA_RMXTW_PRODH_STR-SOURCE_RCP sy-vline 
WA_RMXTW_PRODH_STR-RCP_AENNR sy-vline 
WA_RMXTW_PRODH_STR-DAY_REQ_START sy-vline 
WA_RMXTW_PRODH_STR-DAY_REQ_END sy-vline 
WA_RMXTW_PRODH_STR-DAY_SHD_START sy-vline 
WA_RMXTW_PRODH_STR-DAY_SHD_END sy-vline 
WA_RMXTW_PRODH_STR-DAY_EXE_START sy-vline 
WA_RMXTW_PRODH_STR-DAY_EXE_END sy-vline 
WA_RMXTW_PRODH_STR-ADM_CREA_BY sy-vline 
WA_RMXTW_PRODH_STR-ADM_CREA_AT sy-vline 
WA_RMXTW_PRODH_STR-ADM_CHG_BY sy-vline 
WA_RMXTW_PRODH_STR-ADM_CHG_AT sy-vline      INTO ld_text SEPARATED BY SPACE.

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