ABAP Select data from SAP table QPK1_TS_NODEREC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QPK1_TS_NODEREC 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 QPK1_TS_NODEREC. 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 QPK1_TS_NODEREC 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_QPK1_TS_NODEREC TYPE STANDARD TABLE OF QPK1_TS_NODEREC,
      WA_QPK1_TS_NODEREC TYPE QPK1_TS_NODEREC,
      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: <QPK1_TS_NODEREC> TYPE QPK1_TS_NODEREC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_QPK1_TS_NODEREC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM QPK1_TS_NODEREC
  INTO TABLE IT_QPK1_TS_NODEREC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QPK1_TS_NODEREC
*  INTO TABLE @DATA(IT_QPK1_TS_NODEREC2).
*--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_QPK1_TS_NODEREC INDEX 1 INTO DATA(WA_QPK1_TS_NODEREC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_QPK1_TS_NODEREC ASSIGNING <QPK1_TS_NODEREC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QPK1_TS_NODEREC>-INDEX = 1.
<QPK1_TS_NODEREC>-NEXT = 1.
<QPK1_TS_NODEREC>-CHILD = 1.
<QPK1_TS_NODEREC>-GENKEY = 1.
<QPK1_TS_NODEREC>-DAT = 1.

ENDLOOP.

LOOP AT IT_QPK1_TS_NODEREC INTO WA_QPK1_TS_NODEREC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QPK1_TS_NODEREC-COLOR, sy-vline,
  WA_QPK1_TS_NODEREC-KEYWORD, sy-vline,
  WA_QPK1_TS_NODEREC-TEXT, sy-vline,
  WA_QPK1_TS_NODEREC-QUICKINFO, sy-vline,
  WA_QPK1_TS_NODEREC-QUICKINFOTYP, sy-vline,
  WA_QPK1_TS_NODEREC-QKENNZAHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QPK1_TS_NODEREC 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_QPK1_TS_NODEREC 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_QPK1_TS_NODEREC INTO WA_QPK1_TS_NODEREC.


*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_QPK1_TS_NODEREC_STR, 
INDEX TYPE STRING,
NEXT TYPE STRING,
CHILD TYPE STRING,
GENKEY TYPE STRING,
DAT TYPE STRING,
COLOR TYPE STRING,
KEYWORD TYPE STRING,
TEXT TYPE STRING,
QUICKINFO TYPE STRING,
QUICKINFOTYP TYPE STRING,
QKENNZAHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QPK1_TS_NODEREC_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_QPK1_TS_NODEREC_STR-INDEX sy-vline 
WA_QPK1_TS_NODEREC_STR-NEXT sy-vline 
WA_QPK1_TS_NODEREC_STR-CHILD sy-vline 
WA_QPK1_TS_NODEREC_STR-GENKEY sy-vline 
WA_QPK1_TS_NODEREC_STR-DAT sy-vline 
WA_QPK1_TS_NODEREC_STR-COLOR sy-vline 
WA_QPK1_TS_NODEREC_STR-KEYWORD sy-vline 
WA_QPK1_TS_NODEREC_STR-TEXT sy-vline 
WA_QPK1_TS_NODEREC_STR-QUICKINFO sy-vline 
WA_QPK1_TS_NODEREC_STR-QUICKINFOTYP sy-vline 
WA_QPK1_TS_NODEREC_STR-QKENNZAHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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