ABAP Select data from SAP table RDBRA_REC_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDBRA_REC_HEADER
*  INTO TABLE @DATA(IT_RDBRA_REC_HEADER2).
*--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_RDBRA_REC_HEADER INDEX 1 INTO DATA(WA_RDBRA_REC_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDBRA_REC_HEADER>-MANDT = 1.
<RDBRA_REC_HEADER>-KEYDATE = 1.
<RDBRA_REC_HEADER>-RECORDNR = 1.
<RDBRA_REC_HEADER>-STATE = 1.
<RDBRA_REC_HEADER>-APPLICATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDBRA_REC_HEADER-EVALPROC1, sy-vline,
  WA_RDBRA_REC_HEADER-OBJTYPE, sy-vline,
  WA_RDBRA_REC_HEADER-OBJNR, sy-vline,
  WA_RDBRA_REC_HEADER-OBJDIFF, sy-vline,
  WA_RDBRA_REC_HEADER-SEGMTYPE, sy-vline,
  WA_RDBRA_REC_HEADER-SEGMNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDBRA_REC_HEADER 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_RDBRA_REC_HEADER 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_RDBRA_REC_HEADER INTO WA_RDBRA_REC_HEADER.


*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 1CEP1, internal->external for field EVALPROC1
CALL FUNCTION 'CONVERSION_EXIT_1CEP1_OUTPUT'
  EXPORTING
    input =                      WA_RDBRA_REC_HEADER-EVALPROC1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDBRA_REC_HEADER-EVALPROC1.
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_RDBRA_REC_HEADER_STR, 
MANDT TYPE STRING,
KEYDATE TYPE STRING,
RECORDNR TYPE STRING,
STATE TYPE STRING,
APPLICATION TYPE STRING,
EVALPROC1 TYPE STRING,
OBJTYPE TYPE STRING,
OBJNR TYPE STRING,
OBJDIFF TYPE STRING,
SEGMTYPE TYPE STRING,
SEGMNR TYPE STRING,
CRUSER TYPE STRING,
CRTSTP TYPE STRING,
UPUSER TYPE STRING,
UPTSTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDBRA_REC_HEADER_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_RDBRA_REC_HEADER_STR-MANDT sy-vline 
WA_RDBRA_REC_HEADER_STR-KEYDATE sy-vline 
WA_RDBRA_REC_HEADER_STR-RECORDNR sy-vline 
WA_RDBRA_REC_HEADER_STR-STATE sy-vline 
WA_RDBRA_REC_HEADER_STR-APPLICATION sy-vline 
WA_RDBRA_REC_HEADER_STR-EVALPROC1 sy-vline 
WA_RDBRA_REC_HEADER_STR-OBJTYPE sy-vline 
WA_RDBRA_REC_HEADER_STR-OBJNR sy-vline 
WA_RDBRA_REC_HEADER_STR-OBJDIFF sy-vline 
WA_RDBRA_REC_HEADER_STR-SEGMTYPE sy-vline 
WA_RDBRA_REC_HEADER_STR-SEGMNR sy-vline 
WA_RDBRA_REC_HEADER_STR-CRUSER sy-vline 
WA_RDBRA_REC_HEADER_STR-CRTSTP sy-vline 
WA_RDBRA_REC_HEADER_STR-UPUSER sy-vline 
WA_RDBRA_REC_HEADER_STR-UPTSTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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