ABAP Select data from SAP table CMM_MP_S_MASS_PRC_SEL_OPT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMM_MP_S_MASS_PRC_SEL_OPT
*  INTO TABLE @DATA(IT_CMM_MP_S_MASS_PRC_SEL_OPT2).
*--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_CMM_MP_S_MASS_PRC_SEL_OPT INDEX 1 INTO DATA(WA_CMM_MP_S_MASS_PRC_SEL_OPT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMM_MP_S_MASS_PRC_SEL_OPT>-DOC_NO = 1.
<CMM_MP_S_MASS_PRC_SEL_OPT>-DOC_TYPE = 1.
<CMM_MP_S_MASS_PRC_SEL_OPT>-BUKRS = 1.
<CMM_MP_S_MASS_PRC_SEL_OPT>-PRCTR = 1.
<CMM_MP_S_MASS_PRC_SEL_OPT>-EINDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMM_MP_S_MASS_PRC_SEL_OPT-MATNR, sy-vline,
  WA_CMM_MP_S_MASS_PRC_SEL_OPT-COMMODITY, sy-vline,
  WA_CMM_MP_S_MASS_PRC_SEL_OPT-VKORG, sy-vline,
  WA_CMM_MP_S_MASS_PRC_SEL_OPT-VTWEG, sy-vline,
  WA_CMM_MP_S_MASS_PRC_SEL_OPT-SPART, sy-vline,
  WA_CMM_MP_S_MASS_PRC_SEL_OPT-VKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMM_MP_S_MASS_PRC_SEL_OPT 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_CMM_MP_S_MASS_PRC_SEL_OPT 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_CMM_MP_S_MASS_PRC_SEL_OPT INTO WA_CMM_MP_S_MASS_PRC_SEL_OPT.


*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_CMM_MP_S_MASS_PRC_SEL_OPT_STR, 
DOC_NO TYPE STRING,
DOC_TYPE TYPE STRING,
BUKRS TYPE STRING,
PRCTR TYPE STRING,
EINDT TYPE STRING,
MATNR TYPE STRING,
COMMODITY TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WERKS TYPE STRING,
KUNNR TYPE STRING,
ELIFN TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
TKSACHB TYPE STRING,
PRIC_STATUS TYPE STRING,
UNDER_COMMODITY TYPE STRING,
DCS_ID TYPE STRING,
MIC TYPE STRING,
CM_CODE TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
DOC_CURR TYPE STRING,
COND_TYPE TYPE STRING,
INCO_VER TYPE STRING,
INCOTERM TYPE STRING,
INCO_LOC1 TYPE STRING,
INCO_LOC2 TYPE STRING,
ORDER_TYPE TYPE STRING,
SUB_ACCOUNT TYPE STRING,
COUNTER_PARTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMM_MP_S_MASS_PRC_SEL_OPT_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_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DOC_NO sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DOC_TYPE sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-BUKRS sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-PRCTR sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-EINDT sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-MATNR sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-COMMODITY sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-VKORG sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-VTWEG sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-SPART sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-VKGRP sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-EKORG sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-EKGRP sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-WERKS sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-KUNNR sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-ELIFN sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-ERDAT sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-ERNAM sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-TKSACHB sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-PRIC_STATUS sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-UNDER_COMMODITY sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DCS_ID sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-MIC sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-CM_CODE sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DATE_FROM sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DATE_TO sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-DOC_CURR sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-COND_TYPE sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-INCO_VER sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-INCOTERM sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-INCO_LOC1 sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-INCO_LOC2 sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-ORDER_TYPE sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-SUB_ACCOUNT sy-vline 
WA_CMM_MP_S_MASS_PRC_SEL_OPT_STR-COUNTER_PARTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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