ABAP Select data from SAP table GRFN_S_API_BR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GRFN_S_API_BR 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_API_BR. 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_API_BR 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_API_BR TYPE STANDARD TABLE OF GRFN_S_API_BR,
      WA_GRFN_S_API_BR TYPE GRFN_S_API_BR,
      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_API_BR> TYPE GRFN_S_API_BR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRFN_S_API_BR
*  INTO TABLE @DATA(IT_GRFN_S_API_BR2).
*--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_API_BR INDEX 1 INTO DATA(WA_GRFN_S_API_BR2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRFN_S_API_BR-BRUSAGE, sy-vline,
  WA_GRFN_S_API_BR-BRTYPE, sy-vline,
  WA_GRFN_S_API_BR-BRCATEGORY, sy-vline,
  WA_GRFN_S_API_BR-BRANYSTYPE, sy-vline,
  WA_GRFN_S_API_BR-ANYSIND, sy-vline,
  WA_GRFN_S_API_BR-BRSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRFN_S_API_BR 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_API_BR 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_API_BR INTO WA_GRFN_S_API_BR.


*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_API_BR_STR, 
ID TYPE STRING,
DESCR TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
LTEXT TYPE STRING,
BRUSAGE TYPE STRING,
BRTYPE TYPE STRING,
BRCATEGORY TYPE STRING,
BRANYSTYPE TYPE STRING,
ANYSIND TYPE STRING,
BRSTATUS TYPE STRING,
BRGROUP TYPE STRING,
SEARCHTERM TYPE STRING,
BRVERSION TYPE STRING,
FIELDS TYPE STRING,
CAL_FIELDS TYPE STRING,
SELECTION TYPE STRING,
TECH_INFO TYPE STRING,
FIELD_DESCR TYPE STRING,
BRFP TYPE STRING,
EXPLIST TYPE STRING,
DEFICIENCY TYPE STRING,
CONNECTOR TYPE STRING,
CONF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRFN_S_API_BR_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_API_BR_STR-ID sy-vline 
WA_GRFN_S_API_BR_STR-DESCR sy-vline 
WA_GRFN_S_API_BR_STR-VALIDFROM sy-vline 
WA_GRFN_S_API_BR_STR-VALIDTO sy-vline 
WA_GRFN_S_API_BR_STR-LTEXT sy-vline 
WA_GRFN_S_API_BR_STR-BRUSAGE sy-vline 
WA_GRFN_S_API_BR_STR-BRTYPE sy-vline 
WA_GRFN_S_API_BR_STR-BRCATEGORY sy-vline 
WA_GRFN_S_API_BR_STR-BRANYSTYPE sy-vline 
WA_GRFN_S_API_BR_STR-ANYSIND sy-vline 
WA_GRFN_S_API_BR_STR-BRSTATUS sy-vline 
WA_GRFN_S_API_BR_STR-BRGROUP sy-vline 
WA_GRFN_S_API_BR_STR-SEARCHTERM sy-vline 
WA_GRFN_S_API_BR_STR-BRVERSION sy-vline 
WA_GRFN_S_API_BR_STR-FIELDS sy-vline 
WA_GRFN_S_API_BR_STR-CAL_FIELDS sy-vline 
WA_GRFN_S_API_BR_STR-SELECTION sy-vline 
WA_GRFN_S_API_BR_STR-TECH_INFO sy-vline 
WA_GRFN_S_API_BR_STR-FIELD_DESCR sy-vline 
WA_GRFN_S_API_BR_STR-BRFP sy-vline 
WA_GRFN_S_API_BR_STR-EXPLIST sy-vline 
WA_GRFN_S_API_BR_STR-DEFICIENCY sy-vline 
WA_GRFN_S_API_BR_STR-CONNECTOR sy-vline 
WA_GRFN_S_API_BR_STR-CONF sy-vline      INTO ld_text SEPARATED BY SPACE.

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