ABAP Select data from SAP table GRPC_DS_S_CONTROL_ACCT_GROUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPC_DS_S_CONTROL_ACCT_GROUP
*  INTO TABLE @DATA(IT_GRPC_DS_S_CONTROL_ACCT_GROUP2).
*--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_GRPC_DS_S_CONTROL_ACCT_GROUP INDEX 1 INTO DATA(WA_GRPC_DS_S_CONTROL_ACCT_GROUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPC_DS_S_CONTROL_ACCT_GROUP>-ACCGROUP = 1.
<GRPC_DS_S_CONTROL_ACCT_GROUP>-ACCGROUP_T = 1.
<GRPC_DS_S_CONTROL_ACCT_GROUP>-ACCGROUP_D = 1.
<GRPC_DS_S_CONTROL_ACCT_GROUP>-ASSERTIONS = 1.
<GRPC_DS_S_CONTROL_ACCT_GROUP>-ASSERTION1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION2, sy-vline,
  WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION3, sy-vline,
  WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION4, sy-vline,
  WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION5, sy-vline,
  WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION6, sy-vline,
  WA_GRPC_DS_S_CONTROL_ACCT_GROUP-ASSERTION7, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPC_DS_S_CONTROL_ACCT_GROUP 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_GRPC_DS_S_CONTROL_ACCT_GROUP 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_GRPC_DS_S_CONTROL_ACCT_GROUP INTO WA_GRPC_DS_S_CONTROL_ACCT_GROUP.


*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_GRPC_DS_S_CONTROL_ACCT_GROUP_STR, 
ACCGROUP TYPE STRING,
ACCGROUP_T TYPE STRING,
ACCGROUP_D TYPE STRING,
ASSERTIONS TYPE STRING,
ASSERTION1 TYPE STRING,
ASSERTION2 TYPE STRING,
ASSERTION3 TYPE STRING,
ASSERTION4 TYPE STRING,
ASSERTION5 TYPE STRING,
ASSERTION6 TYPE STRING,
ASSERTION7 TYPE STRING,
ASSERTION8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPC_DS_S_CONTROL_ACCT_GROUP_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_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ACCGROUP sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ACCGROUP_T sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ACCGROUP_D sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTIONS sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION1 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION2 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION3 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION4 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION5 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION6 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION7 sy-vline 
WA_GRPC_DS_S_CONTROL_ACCT_GROUP_STR-ASSERTION8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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