ABAP Select data from SAP table GRAC_S_API_SUPPRULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRAC_S_API_SUPPRULE
*  INTO TABLE @DATA(IT_GRAC_S_API_SUPPRULE2).
*--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_GRAC_S_API_SUPPRULE INDEX 1 INTO DATA(WA_GRAC_S_API_SUPPRULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRAC_S_API_SUPPRULE>-SUPPRULEID = 1.
<GRAC_S_API_SUPPRULE>-FUNCTID = 1.
<GRAC_S_API_SUPPRULE>-RISKID = 1.
<GRAC_S_API_SUPPRULE>-CONNECTOR = 1.
<GRAC_S_API_SUPPRULE>-TABNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRAC_S_API_SUPPRULE-CHECKFIELD, sy-vline,
  WA_GRAC_S_API_SUPPRULE-INCLUSION, sy-vline,
  WA_GRAC_S_API_SUPPRULE-ACTIVE, sy-vline,
  WA_GRAC_S_API_SUPPRULE-SEQUENCE, sy-vline,
  WA_GRAC_S_API_SUPPRULE-FIELDNAME, sy-vline,
  WA_GRAC_S_API_SUPPRULE-FIELDVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRAC_S_API_SUPPRULE 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_GRAC_S_API_SUPPRULE 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_GRAC_S_API_SUPPRULE INTO WA_GRAC_S_API_SUPPRULE.


*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 UPDATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRAC_S_API_SUPPRULE-UPDATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRAC_S_API_SUPPRULE-UPDATED_ON.
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_GRAC_S_API_SUPPRULE_STR, 
SUPPRULEID TYPE STRING,
FUNCTID TYPE STRING,
RISKID TYPE STRING,
CONNECTOR TYPE STRING,
TABNAME TYPE STRING,
CHECKFIELD TYPE STRING,
INCLUSION TYPE STRING,
ACTIVE TYPE STRING,
SEQUENCE TYPE STRING,
FIELDNAME TYPE STRING,
FIELDVALUE TYPE STRING,
UPDATED_BY TYPE STRING,
UPDATED_ON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRAC_S_API_SUPPRULE_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_GRAC_S_API_SUPPRULE_STR-SUPPRULEID sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-FUNCTID sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-RISKID sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-CONNECTOR sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-TABNAME sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-CHECKFIELD sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-INCLUSION sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-ACTIVE sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-SEQUENCE sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-FIELDNAME sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-FIELDVALUE sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-UPDATED_BY sy-vline 
WA_GRAC_S_API_SUPPRULE_STR-UPDATED_ON sy-vline      INTO ld_text SEPARATED BY SPACE.

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