ABAP Select data from SAP table QSTH_DIS_RESULT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QSTH_DIS_RESULT
*  INTO TABLE @DATA(IT_QSTH_DIS_RESULT2).
*--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_QSTH_DIS_RESULT INDEX 1 INTO DATA(WA_QSTH_DIS_RESULT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QSTH_DIS_RESULT>-EINFELD01 = 1.
<QSTH_DIS_RESULT>-EINFELD02 = 1.
<QSTH_DIS_RESULT>-EINFELD03 = 1.
<QSTH_DIS_RESULT>-EINFELD04 = 1.
<QSTH_DIS_RESULT>-EINFELD05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QSTH_DIS_RESULT-EINFELD06, sy-vline,
  WA_QSTH_DIS_RESULT-EINFELD07, sy-vline,
  WA_QSTH_DIS_RESULT-EINFELD08, sy-vline,
  WA_QSTH_DIS_RESULT-EINFELD09, sy-vline,
  WA_QSTH_DIS_RESULT-EINFELD10, sy-vline,
  WA_QSTH_DIS_RESULT-EINFELD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QSTH_DIS_RESULT 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_QSTH_DIS_RESULT 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_QSTH_DIS_RESULT INTO WA_QSTH_DIS_RESULT.


*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_QSTH_DIS_RESULT_STR, 
EINFELD01 TYPE STRING,
EINFELD02 TYPE STRING,
EINFELD03 TYPE STRING,
EINFELD04 TYPE STRING,
EINFELD05 TYPE STRING,
EINFELD06 TYPE STRING,
EINFELD07 TYPE STRING,
EINFELD08 TYPE STRING,
EINFELD09 TYPE STRING,
EINFELD10 TYPE STRING,
EINFELD11 TYPE STRING,
EINFELD12 TYPE STRING,
EINFELD13 TYPE STRING,
EINFELD14 TYPE STRING,
EINFELD15 TYPE STRING,
EINFELD16 TYPE STRING,
EINFELD17 TYPE STRING,
EINFELD18 TYPE STRING,
EINFELD19 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QSTH_DIS_RESULT_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_QSTH_DIS_RESULT_STR-EINFELD01 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD02 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD03 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD04 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD05 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD06 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD07 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD08 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD09 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD10 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD11 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD12 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD13 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD14 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD15 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD16 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD17 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD18 sy-vline 
WA_QSTH_DIS_RESULT_STR-EINFELD19 sy-vline      INTO ld_text SEPARATED BY SPACE.

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