ABAP Select data from SAP table GRFN_S_EO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP GRFN_S_EO 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_EO. 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_EO 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_EO TYPE STANDARD TABLE OF GRFN_S_EO,
      WA_GRFN_S_EO TYPE GRFN_S_EO,
      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_EO> TYPE GRFN_S_EO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRFN_S_EO
*  INTO TABLE @DATA(IT_GRFN_S_EO2).
*--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_EO INDEX 1 INTO DATA(WA_GRFN_S_EO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRFN_S_EO>-OBJ_ID = 1.
<GRFN_S_EO>-VALIDFROM = 1.
<GRFN_S_EO>-VALIDTO = 1.
<GRFN_S_EO>-DESCR = 1.
<GRFN_S_EO>-LTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRFN_S_EO-EOSTATUS, sy-vline,
  WA_GRFN_S_EO-CONNECTTYPE, sy-vline,
  WA_GRFN_S_EO-SUBSCENARIO, sy-vline,
  WA_GRFN_S_EO-QUERYTIMESTAMP, sy-vline,
  WA_GRFN_S_EO-SEARCHTERM, sy-vline,
  WA_GRFN_S_EO-QRY_PARAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRFN_S_EO 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_EO 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_EO INTO WA_GRFN_S_EO.


*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_EO_STR, 
OBJ_ID TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
DESCR TYPE STRING,
LTEXT TYPE STRING,
EOSTATUS TYPE STRING,
CONNECTTYPE TYPE STRING,
SUBSCENARIO TYPE STRING,
QUERYTIMESTAMP TYPE STRING,
SEARCHTERM TYPE STRING,
QRY_PARAS TYPE STRING,
FIELDS TYPE STRING,
FIELD_DESCS TYPE STRING,
CONNECTORS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRFN_S_EO_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_EO_STR-OBJ_ID sy-vline 
WA_GRFN_S_EO_STR-VALIDFROM sy-vline 
WA_GRFN_S_EO_STR-VALIDTO sy-vline 
WA_GRFN_S_EO_STR-DESCR sy-vline 
WA_GRFN_S_EO_STR-LTEXT sy-vline 
WA_GRFN_S_EO_STR-EOSTATUS sy-vline 
WA_GRFN_S_EO_STR-CONNECTTYPE sy-vline 
WA_GRFN_S_EO_STR-SUBSCENARIO sy-vline 
WA_GRFN_S_EO_STR-QUERYTIMESTAMP sy-vline 
WA_GRFN_S_EO_STR-SEARCHTERM sy-vline 
WA_GRFN_S_EO_STR-QRY_PARAS sy-vline 
WA_GRFN_S_EO_STR-FIELDS sy-vline 
WA_GRFN_S_EO_STR-FIELD_DESCS sy-vline 
WA_GRFN_S_EO_STR-CONNECTORS sy-vline      INTO ld_text SEPARATED BY SPACE.

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