ABAP Select data from SAP table GRACROLE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GRACROLE 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 GRACROLE. 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 GRACROLE 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_GRACROLE TYPE STANDARD TABLE OF GRACROLE,
      WA_GRACROLE TYPE GRACROLE,
      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: <GRACROLE> TYPE GRACROLE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRACROLE
*  INTO TABLE @DATA(IT_GRACROLE2).
*--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_GRACROLE INDEX 1 INTO DATA(WA_GRACROLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRACROLE>-MANDT = 1.
<GRACROLE>-ROLEID = 1.
<GRACROLE>-ROLE_NAME = 1.
<GRACROLE>-CONNECTOR_GRP = 1.
<GRACROLE>-ROLE_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRACROLE-BPROC, sy-vline,
  WA_GRACROLE-BSUBPROC, sy-vline,
  WA_GRACROLE-PRJREL, sy-vline,
  WA_GRACROLE-CRITLVL, sy-vline,
  WA_GRACROLE-PROFILE, sy-vline,
  WA_GRACROLE-ROLE_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRACROLE 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_GRACROLE 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_GRACROLE INTO WA_GRACROLE.


*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 CHANGE_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRACROLE-CHANGE_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRACROLE-CHANGE_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CREATE_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRACROLE-CREATE_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRACROLE-CREATE_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field LAST_AUTH_SYNC
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRACROLE-LAST_AUTH_SYNC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRACROLE-LAST_AUTH_SYNC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field LAST_AUTH_UPDATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRACROLE-LAST_AUTH_UPDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRACROLE-LAST_AUTH_UPDATE.
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_GRACROLE_STR, 
MANDT TYPE STRING,
ROLEID TYPE STRING,
ROLE_NAME TYPE STRING,
CONNECTOR_GRP TYPE STRING,
ROLE_TYPE TYPE STRING,
BPROC TYPE STRING,
BSUBPROC TYPE STRING,
PRJREL TYPE STRING,
CRITLVL TYPE STRING,
PROFILE TYPE STRING,
ROLE_STATUS TYPE STRING,
NMCNV TYPE STRING,
METHODOLOGY TYPE STRING,
LOCKED TYPE STRING,
CURRENT_STEP TYPE STRING,
MAX_STEP TYPE STRING,
BACKEND_MODE TYPE STRING,
CERTIFY_PERIOD TYPE STRING,
CERTIFY_DATE TYPE STRING,
CERTIFY_DUE TYPE STRING,
CERTIFY_BY TYPE STRING,
REAFFIRM_PERIOD TYPE STRING,
LAST_REAFFIRM_DT TYPE STRING,
REAFFIRM_DUE TYPE STRING,
LAST_REAFFIRM_BY TYPE STRING,
COMM_MAND TYPE STRING,
CHANGE_BY TYPE STRING,
CHANGE_ON TYPE STRING,
CREATE_BY TYPE STRING,
CREATE_ON TYPE STRING,
ROLE_SOURCE TYPE STRING,
SENSITIVITY TYPE STRING,
ALLOW_DERIVATION TYPE STRING,
IDENTIFIER TYPE STRING,
PROV_COMM_MAND TYPE STRING,
CONS_PARENT_APVR TYPE STRING,
LAST_AUTH_SYNC TYPE STRING,
LAST_AUTH_UPDATE TYPE STRING,
CAN_BE_FF_ROLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRACROLE_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_GRACROLE_STR-MANDT sy-vline 
WA_GRACROLE_STR-ROLEID sy-vline 
WA_GRACROLE_STR-ROLE_NAME sy-vline 
WA_GRACROLE_STR-CONNECTOR_GRP sy-vline 
WA_GRACROLE_STR-ROLE_TYPE sy-vline 
WA_GRACROLE_STR-BPROC sy-vline 
WA_GRACROLE_STR-BSUBPROC sy-vline 
WA_GRACROLE_STR-PRJREL sy-vline 
WA_GRACROLE_STR-CRITLVL sy-vline 
WA_GRACROLE_STR-PROFILE sy-vline 
WA_GRACROLE_STR-ROLE_STATUS sy-vline 
WA_GRACROLE_STR-NMCNV sy-vline 
WA_GRACROLE_STR-METHODOLOGY sy-vline 
WA_GRACROLE_STR-LOCKED sy-vline 
WA_GRACROLE_STR-CURRENT_STEP sy-vline 
WA_GRACROLE_STR-MAX_STEP sy-vline 
WA_GRACROLE_STR-BACKEND_MODE sy-vline 
WA_GRACROLE_STR-CERTIFY_PERIOD sy-vline 
WA_GRACROLE_STR-CERTIFY_DATE sy-vline 
WA_GRACROLE_STR-CERTIFY_DUE sy-vline 
WA_GRACROLE_STR-CERTIFY_BY sy-vline 
WA_GRACROLE_STR-REAFFIRM_PERIOD sy-vline 
WA_GRACROLE_STR-LAST_REAFFIRM_DT sy-vline 
WA_GRACROLE_STR-REAFFIRM_DUE sy-vline 
WA_GRACROLE_STR-LAST_REAFFIRM_BY sy-vline 
WA_GRACROLE_STR-COMM_MAND sy-vline 
WA_GRACROLE_STR-CHANGE_BY sy-vline 
WA_GRACROLE_STR-CHANGE_ON sy-vline 
WA_GRACROLE_STR-CREATE_BY sy-vline 
WA_GRACROLE_STR-CREATE_ON sy-vline 
WA_GRACROLE_STR-ROLE_SOURCE sy-vline 
WA_GRACROLE_STR-SENSITIVITY sy-vline 
WA_GRACROLE_STR-ALLOW_DERIVATION sy-vline 
WA_GRACROLE_STR-IDENTIFIER sy-vline 
WA_GRACROLE_STR-PROV_COMM_MAND sy-vline 
WA_GRACROLE_STR-CONS_PARENT_APVR sy-vline 
WA_GRACROLE_STR-LAST_AUTH_SYNC sy-vline 
WA_GRACROLE_STR-LAST_AUTH_UPDATE sy-vline 
WA_GRACROLE_STR-CAN_BE_FF_ROLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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