ABAP Select data from SAP table GIRODK_99 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GIRODK_99 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 GIRODK_99. 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 GIRODK_99 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_GIRODK_99 TYPE STANDARD TABLE OF GIRODK_99,
      WA_GIRODK_99 TYPE GIRODK_99,
      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: <GIRODK_99> TYPE GIRODK_99.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GIRODK_99.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GIRODK_99
  INTO TABLE IT_GIRODK_99.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GIRODK_99
*  INTO TABLE @DATA(IT_GIRODK_992).
*--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_GIRODK_99 INDEX 1 INTO DATA(WA_GIRODK_992).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GIRODK_99 ASSIGNING <GIRODK_99>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GIRODK_99>-TRNNR = 1.
<GIRODK_99>-RECTY = 1.
<GIRODK_99>-FILL1 = 1.
<GIRODK_99>-REGNR = 1.
<GIRODK_99>-RESER1 = 1.

ENDLOOP.

LOOP AT IT_GIRODK_99 INTO WA_GIRODK_99.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GIRODK_99-GIRONR, sy-vline,
  WA_GIRODK_99-NRC, sy-vline,
  WA_GIRODK_99-RESER2, sy-vline,
  WA_GIRODK_99-NBRC, sy-vline,
  WA_GIRODK_99-RESER3, sy-vline,
  WA_GIRODK_99-TBEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GIRODK_99 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_GIRODK_99 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_GIRODK_99 INTO WA_GIRODK_99.


*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_GIRODK_99_STR, 
TRNNR TYPE STRING,
RECTY TYPE STRING,
FILL1 TYPE STRING,
REGNR TYPE STRING,
RESER1 TYPE STRING,
GIRONR TYPE STRING,
NRC TYPE STRING,
RESER2 TYPE STRING,
NBRC TYPE STRING,
RESER3 TYPE STRING,
TBEL TYPE STRING,
FILL2 TYPE STRING,
RESER4 TYPE STRING,
FILL3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GIRODK_99_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_GIRODK_99_STR-TRNNR sy-vline 
WA_GIRODK_99_STR-RECTY sy-vline 
WA_GIRODK_99_STR-FILL1 sy-vline 
WA_GIRODK_99_STR-REGNR sy-vline 
WA_GIRODK_99_STR-RESER1 sy-vline 
WA_GIRODK_99_STR-GIRONR sy-vline 
WA_GIRODK_99_STR-NRC sy-vline 
WA_GIRODK_99_STR-RESER2 sy-vline 
WA_GIRODK_99_STR-NBRC sy-vline 
WA_GIRODK_99_STR-RESER3 sy-vline 
WA_GIRODK_99_STR-TBEL sy-vline 
WA_GIRODK_99_STR-FILL2 sy-vline 
WA_GIRODK_99_STR-RESER4 sy-vline 
WA_GIRODK_99_STR-FILL3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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