ABAP Select data from SAP table CMX_PII_W_MESSAGE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMX_PII_W_MESSAGE
*  INTO TABLE @DATA(IT_CMX_PII_W_MESSAGE2).
*--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_CMX_PII_W_MESSAGE INDEX 1 INTO DATA(WA_CMX_PII_W_MESSAGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMX_PII_W_MESSAGE>-PHASE = 1.
<CMX_PII_W_MESSAGE>-FTLNR = 1.
<CMX_PII_W_MESSAGE>-FVLNR = 1.
<CMX_PII_W_MESSAGE>-TEXT = 1.
<CMX_PII_W_MESSAGE>-FIELD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMX_PII_W_MESSAGE-CNODE, sy-vline,
  WA_CMX_PII_W_MESSAGE-CLASS, sy-vline,
  WA_CMX_PII_W_MESSAGE-TYPE, sy-vline,
  WA_CMX_PII_W_MESSAGE-NR, sy-vline,
  WA_CMX_PII_W_MESSAGE-PARAM1, sy-vline,
  WA_CMX_PII_W_MESSAGE-PARAM2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMX_PII_W_MESSAGE 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_CMX_PII_W_MESSAGE 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_CMX_PII_W_MESSAGE INTO WA_CMX_PII_W_MESSAGE.


*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 NUMCV, internal->external for field PHASE
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMX_PII_W_MESSAGE-PHASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMX_PII_W_MESSAGE-PHASE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field FTLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMX_PII_W_MESSAGE-FTLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMX_PII_W_MESSAGE-FTLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field FVLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMX_PII_W_MESSAGE-FVLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMX_PII_W_MESSAGE-FVLNR.
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_CMX_PII_W_MESSAGE_STR, 
PHASE TYPE STRING,
FTLNR TYPE STRING,
FVLNR TYPE STRING,
TEXT TYPE STRING,
FIELD TYPE STRING,
CNODE TYPE STRING,
CLASS TYPE STRING,
TYPE TYPE STRING,
NR TYPE STRING,
PARAM1 TYPE STRING,
PARAM2 TYPE STRING,
PARAM3 TYPE STRING,
PARAM4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMX_PII_W_MESSAGE_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_CMX_PII_W_MESSAGE_STR-PHASE sy-vline 
WA_CMX_PII_W_MESSAGE_STR-FTLNR sy-vline 
WA_CMX_PII_W_MESSAGE_STR-FVLNR sy-vline 
WA_CMX_PII_W_MESSAGE_STR-TEXT sy-vline 
WA_CMX_PII_W_MESSAGE_STR-FIELD sy-vline 
WA_CMX_PII_W_MESSAGE_STR-CNODE sy-vline 
WA_CMX_PII_W_MESSAGE_STR-CLASS sy-vline 
WA_CMX_PII_W_MESSAGE_STR-TYPE sy-vline 
WA_CMX_PII_W_MESSAGE_STR-NR sy-vline 
WA_CMX_PII_W_MESSAGE_STR-PARAM1 sy-vline 
WA_CMX_PII_W_MESSAGE_STR-PARAM2 sy-vline 
WA_CMX_PII_W_MESSAGE_STR-PARAM3 sy-vline 
WA_CMX_PII_W_MESSAGE_STR-PARAM4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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