ABAP Select data from SAP table ROIRE_DTF_HDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIRE_DTF_HDR
*  INTO TABLE @DATA(IT_ROIRE_DTF_HDR2).
*--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_ROIRE_DTF_HDR INDEX 1 INTO DATA(WA_ROIRE_DTF_HDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIRE_DTF_HDR>-UPLDAT = 1.
<ROIRE_DTF_HDR>-UPLTIM = 1.
<ROIRE_DTF_HDR>-PBLNR = 1.
<ROIRE_DTF_HDR>-TERMID = 1.
<ROIRE_DTF_HDR>-TERMNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIRE_DTF_HDR-CASHIER, sy-vline,
  WA_ROIRE_DTF_HDR-CSHNAME, sy-vline,
  WA_ROIRE_DTF_HDR-VKDAT, sy-vline,
  WA_ROIRE_DTF_HDR-VKTIM, sy-vline,
  WA_ROIRE_DTF_HDR-CCNUM, sy-vline,
  WA_ROIRE_DTF_HDR-SSR_CCINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIRE_DTF_HDR 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_ROIRE_DTF_HDR 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_ROIRE_DTF_HDR INTO WA_ROIRE_DTF_HDR.


*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 ALPHA, internal->external for field PBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIRE_DTF_HDR-PBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRE_DTF_HDR-PBLNR.
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_ROIRE_DTF_HDR_STR, 
UPLDAT TYPE STRING,
UPLTIM TYPE STRING,
PBLNR TYPE STRING,
TERMID TYPE STRING,
TERMNR TYPE STRING,
CASHIER TYPE STRING,
CSHNAME TYPE STRING,
VKDAT TYPE STRING,
VKTIM TYPE STRING,
CCNUM TYPE STRING,
SSR_CCINS TYPE STRING,
SSR_ADDINFO TYPE STRING,
SSR_CCTYP TYPE STRING,
CCFOL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
AUTNR TYPE STRING,
BLVER TYPE STRING,
BLDAT TYPE STRING,
BRTWR TYPE STRING,
WAERS TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
CRYPTIC_HASH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIRE_DTF_HDR_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_ROIRE_DTF_HDR_STR-UPLDAT sy-vline 
WA_ROIRE_DTF_HDR_STR-UPLTIM sy-vline 
WA_ROIRE_DTF_HDR_STR-PBLNR sy-vline 
WA_ROIRE_DTF_HDR_STR-TERMID sy-vline 
WA_ROIRE_DTF_HDR_STR-TERMNR sy-vline 
WA_ROIRE_DTF_HDR_STR-CASHIER sy-vline 
WA_ROIRE_DTF_HDR_STR-CSHNAME sy-vline 
WA_ROIRE_DTF_HDR_STR-VKDAT sy-vline 
WA_ROIRE_DTF_HDR_STR-VKTIM sy-vline 
WA_ROIRE_DTF_HDR_STR-CCNUM sy-vline 
WA_ROIRE_DTF_HDR_STR-SSR_CCINS sy-vline 
WA_ROIRE_DTF_HDR_STR-SSR_ADDINFO sy-vline 
WA_ROIRE_DTF_HDR_STR-SSR_CCTYP sy-vline 
WA_ROIRE_DTF_HDR_STR-CCFOL sy-vline 
WA_ROIRE_DTF_HDR_STR-DATAB sy-vline 
WA_ROIRE_DTF_HDR_STR-DATBI sy-vline 
WA_ROIRE_DTF_HDR_STR-AUTNR sy-vline 
WA_ROIRE_DTF_HDR_STR-BLVER sy-vline 
WA_ROIRE_DTF_HDR_STR-BLDAT sy-vline 
WA_ROIRE_DTF_HDR_STR-BRTWR sy-vline 
WA_ROIRE_DTF_HDR_STR-WAERS sy-vline 
WA_ROIRE_DTF_HDR_STR-CGUID sy-vline 
WA_ROIRE_DTF_HDR_STR-ENCTP sy-vline 
WA_ROIRE_DTF_HDR_STR-CRYPTIC_HASH sy-vline      INTO ld_text SEPARATED BY SPACE.

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