ABAP Select data from SAP table QPCPS_NODE_DATA_CHA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QPCPS_NODE_DATA_CHA
*  INTO TABLE @DATA(IT_QPCPS_NODE_DATA_CHA2).
*--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_QPCPS_NODE_DATA_CHA INDEX 1 INTO DATA(WA_QPCPS_NODE_DATA_CHA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QPCPS_NODE_DATA_CHA>-MERKNR = 1.
<QPCPS_NODE_DATA_CHA>-VERWMERKM = 1.
<QPCPS_NODE_DATA_CHA>-MKVERSION = 1.
<QPCPS_NODE_DATA_CHA>-TARGET_VAL = 1.
<QPCPS_NODE_DATA_CHA>-UP_TOL_LMT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QPCPS_NODE_DATA_CHA-LW_TOL_LMT, sy-vline,
  WA_QPCPS_NODE_DATA_CHA-MEAS_UNIT, sy-vline,
  WA_QPCPS_NODE_DATA_CHA-STICHPRVER, sy-vline,
  WA_QPCPS_NODE_DATA_CHA-QSPCMK, sy-vline,
  WA_QPCPS_NODE_DATA_CHA-RES_PLAN, sy-vline,
  WA_QPCPS_NODE_DATA_CHA-CTRMETH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QPCPS_NODE_DATA_CHA 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_QPCPS_NODE_DATA_CHA 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_QPCPS_NODE_DATA_CHA INTO WA_QPCPS_NODE_DATA_CHA.


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

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

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

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

*Conversion exit PLMAM, internal->external for field CHAORIG_GUID
CALL FUNCTION 'CONVERSION_EXIT_PLMAM_OUTPUT'
  EXPORTING
    input =                      WA_QPCPS_NODE_DATA_CHA-CHAORIG_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPCPS_NODE_DATA_CHA-CHAORIG_GUID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHAORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QPCPS_NODE_DATA_CHA-CHAORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPCPS_NODE_DATA_CHA-CHAORIG.
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_QPCPS_NODE_DATA_CHA_STR, 
MERKNR TYPE STRING,
VERWMERKM TYPE STRING,
MKVERSION TYPE STRING,
TARGET_VAL TYPE STRING,
UP_TOL_LMT TYPE STRING,
LW_TOL_LMT TYPE STRING,
MEAS_UNIT TYPE STRING,
STICHPRVER TYPE STRING,
QSPCMK TYPE STRING,
RES_PLAN TYPE STRING,
CTRMETH TYPE STRING,
CHAORIG_GUID TYPE STRING,
CHAORIG TYPE STRING,
CHAORIG_REF TYPE STRING,
CHAR_TYPE TYPE STRING,
MERKGEW TYPE STRING,
FMEA_CHAR_ID TYPE STRING,
TXTZ1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QPCPS_NODE_DATA_CHA_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_QPCPS_NODE_DATA_CHA_STR-MERKNR sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-VERWMERKM sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-MKVERSION sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-TARGET_VAL sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-UP_TOL_LMT sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-LW_TOL_LMT sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-MEAS_UNIT sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-STICHPRVER sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-QSPCMK sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-RES_PLAN sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-CTRMETH sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-CHAORIG_GUID sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-CHAORIG sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-CHAORIG_REF sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-CHAR_TYPE sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-MERKGEW sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-FMEA_CHAR_ID sy-vline 
WA_QPCPS_NODE_DATA_CHA_STR-TXTZ1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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