ABAP Select data from SAP table GRFN_S_PC_DBA_SELECTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRFN_S_PC_DBA_SELECTION
*  INTO TABLE @DATA(IT_GRFN_S_PC_DBA_SELECTION2).
*--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_GRFN_S_PC_DBA_SELECTION INDEX 1 INTO DATA(WA_GRFN_S_PC_DBA_SELECTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRFN_S_PC_DBA_SELECTION>-TIMEFRAME = 1.
<GRFN_S_PC_DBA_SELECTION>-TF_YEAR = 1.
<GRFN_S_PC_DBA_SELECTION>-RE_LIST = 1.
<GRFN_S_PC_DBA_SELECTION>-RR = 1.
<GRFN_S_PC_DBA_SELECTION>-RR_T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRFN_S_PC_DBA_SELECTION-OU, sy-vline,
  WA_GRFN_S_PC_DBA_SELECTION-OU_T, sy-vline,
  WA_GRFN_S_PC_DBA_SELECTION-OU_COUNTRY, sy-vline,
  WA_GRFN_S_PC_DBA_SELECTION-OU_COUNTRY_T, sy-vline,
  WA_GRFN_S_PC_DBA_SELECTION-OU_REGION, sy-vline,
  WA_GRFN_S_PC_DBA_SELECTION-OU_REGION_T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRFN_S_PC_DBA_SELECTION 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_GRFN_S_PC_DBA_SELECTION 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_GRFN_S_PC_DBA_SELECTION INTO WA_GRFN_S_PC_DBA_SELECTION.


*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_GRFN_S_PC_DBA_SELECTION_STR, 
TIMEFRAME TYPE STRING,
TF_YEAR TYPE STRING,
RE_LIST TYPE STRING,
RR TYPE STRING,
RR_T TYPE STRING,
OU TYPE STRING,
OU_T TYPE STRING,
OU_COUNTRY TYPE STRING,
OU_COUNTRY_T TYPE STRING,
OU_REGION TYPE STRING,
OU_REGION_T TYPE STRING,
PR TYPE STRING,
PR_T TYPE STRING,
SP TYPE STRING,
SP_T TYPE STRING,
CN TYPE STRING,
CN_T TYPE STRING,
CN_TSTAUT_LIST TYPE STRING,
AG TYPE STRING,
AG_T TYPE STRING,
IS_STATUS TYPE STRING,
IS_SO_RELEVANT TYPE STRING,
OU_IN_SCOPE TYPE STRING,
SP_IN_SCOPE TYPE STRING,
OU_OLSP TYPE STRING,
OU_OLSP_T TYPE STRING,
CN_SIG TYPE STRING,
CN_EVIDENCE TYPE STRING,
RATING_LIST TYPE STRING,
RATING_VALUE TYPE STRING,
AGGR_TECHNIQUE TYPE STRING,
NO_SUBORGS TYPE STRING,
NO_BUFFER TYPE STRING,
PROC_ASS TYPE STRING,
CASES TYPE STRING,
TEST_STEPS TYPE STRING,
OUTPUT_TYPE TYPE STRING,
PROCESS_STEPS TYPE STRING,
CURRENCY TYPE STRING,
ASSIGNMENT_TYPE TYPE STRING,
LONG_TEXT TYPE STRING,
PL_STATUS_LIST TYPE STRING,
CP_STATUS_LIST TYPE STRING,
IS_STATUS_LIST TYPE STRING,
CP_T TYPE STRING,
CP_CREA_USER_T TYPE STRING,
CP_CREA_USER_LIST TYPE STRING,
CP_CREA_DATE_FROM TYPE STRING,
CP_CREA_DATE_TO TYPE STRING,
CP_START_DATE_FROM TYPE STRING,
CP_START_DATE_TO TYPE STRING,
CP_END_DATE_FROM TYPE STRING,
CP_END_DATE_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRFN_S_PC_DBA_SELECTION_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_GRFN_S_PC_DBA_SELECTION_STR-TIMEFRAME sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-TF_YEAR sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-RE_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-RR sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-RR_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_COUNTRY sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_COUNTRY_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_REGION sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_REGION_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-PR sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-PR_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-SP sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-SP_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CN sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CN_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CN_TSTAUT_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-AG sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-AG_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-IS_STATUS sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-IS_SO_RELEVANT sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_IN_SCOPE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-SP_IN_SCOPE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_OLSP sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OU_OLSP_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CN_SIG sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CN_EVIDENCE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-RATING_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-RATING_VALUE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-AGGR_TECHNIQUE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-NO_SUBORGS sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-NO_BUFFER sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-PROC_ASS sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CASES sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-TEST_STEPS sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-OUTPUT_TYPE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-PROCESS_STEPS sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CURRENCY sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-ASSIGNMENT_TYPE sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-LONG_TEXT sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-PL_STATUS_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_STATUS_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-IS_STATUS_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_CREA_USER_T sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_CREA_USER_LIST sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_CREA_DATE_FROM sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_CREA_DATE_TO sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_START_DATE_FROM sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_START_DATE_TO sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_END_DATE_FROM sy-vline 
WA_GRFN_S_PC_DBA_SELECTION_STR-CP_END_DATE_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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