ABAP Select data from SAP table GRPCDEFICSEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPCDEFICSEL
*  INTO TABLE @DATA(IT_GRPCDEFICSEL2).
*--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_GRPCDEFICSEL INDEX 1 INTO DATA(WA_GRPCDEFICSEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPCDEFICSEL>-MANDT = 1.
<GRPCDEFICSEL>-ANALYSIS_ID = 1.
<GRPCDEFICSEL>-DESCRIPTION = 1.
<GRPCDEFICSEL>-VALUE = 1.
<GRPCDEFICSEL>-CURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPCDEFICSEL-INCONSEQ, sy-vline,
  WA_GRPCDEFICSEL-MATERIAL, sy-vline,
  WA_GRPCDEFICSEL-BEG_DATE, sy-vline,
  WA_GRPCDEFICSEL-TIMEFRAME, sy-vline,
  WA_GRPCDEFICSEL-TF_YEAR, sy-vline,
  WA_GRPCDEFICSEL-PRIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPCDEFICSEL 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_GRPCDEFICSEL 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_GRPCDEFICSEL INTO WA_GRPCDEFICSEL.


*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 TSTPS, internal->external for field CREATED_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRPCDEFICSEL-CREATED_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCDEFICSEL-CREATED_TIME.
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_GRPCDEFICSEL_STR, 
MANDT TYPE STRING,
ANALYSIS_ID TYPE STRING,
DESCRIPTION TYPE STRING,
VALUE TYPE STRING,
CURRENCY TYPE STRING,
INCONSEQ TYPE STRING,
MATERIAL TYPE STRING,
BEG_DATE TYPE STRING,
TIMEFRAME TYPE STRING,
TF_YEAR TYPE STRING,
PRIORITY TYPE STRING,
CATEGORY TYPE STRING,
STATUS TYPE STRING,
ANADATE TYPE STRING,
ENDREQ TYPE STRING,
JOBCOUNT TYPE STRING,
JOBDATE TYPE STRING,
JOBTIME TYPE STRING,
SCHEDULED_BY TYPE STRING,
CREATED_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPCDEFICSEL_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_GRPCDEFICSEL_STR-MANDT sy-vline 
WA_GRPCDEFICSEL_STR-ANALYSIS_ID sy-vline 
WA_GRPCDEFICSEL_STR-DESCRIPTION sy-vline 
WA_GRPCDEFICSEL_STR-VALUE sy-vline 
WA_GRPCDEFICSEL_STR-CURRENCY sy-vline 
WA_GRPCDEFICSEL_STR-INCONSEQ sy-vline 
WA_GRPCDEFICSEL_STR-MATERIAL sy-vline 
WA_GRPCDEFICSEL_STR-BEG_DATE sy-vline 
WA_GRPCDEFICSEL_STR-TIMEFRAME sy-vline 
WA_GRPCDEFICSEL_STR-TF_YEAR sy-vline 
WA_GRPCDEFICSEL_STR-PRIORITY sy-vline 
WA_GRPCDEFICSEL_STR-CATEGORY sy-vline 
WA_GRPCDEFICSEL_STR-STATUS sy-vline 
WA_GRPCDEFICSEL_STR-ANADATE sy-vline 
WA_GRPCDEFICSEL_STR-ENDREQ sy-vline 
WA_GRPCDEFICSEL_STR-JOBCOUNT sy-vline 
WA_GRPCDEFICSEL_STR-JOBDATE sy-vline 
WA_GRPCDEFICSEL_STR-JOBTIME sy-vline 
WA_GRPCDEFICSEL_STR-SCHEDULED_BY sy-vline 
WA_GRPCDEFICSEL_STR-CREATED_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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