ABAP Select data from SAP table RBCT_ENCUMBRANCE_EXTRACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RBCT_ENCUMBRANCE_EXTRACT
*  INTO TABLE @DATA(IT_RBCT_ENCUMBRANCE_EXTRACT2).
*--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_RBCT_ENCUMBRANCE_EXTRACT INDEX 1 INTO DATA(WA_RBCT_ENCUMBRANCE_EXTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RBCT_ENCUMBRANCE_EXTRACT>-UPDMOD = 1.
<RBCT_ENCUMBRANCE_EXTRACT>-LOGSYS = 1.
<RBCT_ENCUMBRANCE_EXTRACT>-BUKRS = 1.
<RBCT_ENCUMBRANCE_EXTRACT>-RANL = 1.
<RBCT_ENCUMBRANCE_EXTRACT>-RSICHER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RBCT_ENCUMBRANCE_EXTRACT-SGRPFART, sy-vline,
  WA_RBCT_ENCUMBRANCE_EXTRACT-SGRPFTYP, sy-vline,
  WA_RBCT_ENCUMBRANCE_EXTRACT-DABTRET, sy-vline,
  WA_RBCT_ENCUMBRANCE_EXTRACT-DAUFLASS, sy-vline,
  WA_RBCT_ENCUMBRANCE_EXTRACT-JLOESCH, sy-vline,
  WA_RBCT_ENCUMBRANCE_EXTRACT-BDARLEH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RBCT_ENCUMBRANCE_EXTRACT 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_RBCT_ENCUMBRANCE_EXTRACT 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_RBCT_ENCUMBRANCE_EXTRACT INTO WA_RBCT_ENCUMBRANCE_EXTRACT.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RBCT_ENCUMBRANCE_EXTRACT-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RBCT_ENCUMBRANCE_EXTRACT-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RBCT_ENCUMBRANCE_EXTRACT-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RBCT_ENCUMBRANCE_EXTRACT-RANL.
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_RBCT_ENCUMBRANCE_EXTRACT_STR, 
UPDMOD TYPE STRING,
LOGSYS TYPE STRING,
BUKRS TYPE STRING,
RANL TYPE STRING,
RSICHER TYPE STRING,
SGRPFART TYPE STRING,
SGRPFTYP TYPE STRING,
DABTRET TYPE STRING,
DAUFLASS TYPE STRING,
JLOESCH TYPE STRING,
BDARLEH TYPE STRING,
BGRPFSUM TYPE STRING,
BABTRAKT TYPE STRING,
SWHRGRPF TYPE STRING,
RBELAST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RBCT_ENCUMBRANCE_EXTRACT_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_RBCT_ENCUMBRANCE_EXTRACT_STR-UPDMOD sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-LOGSYS sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-BUKRS sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-RANL sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-RSICHER sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-SGRPFART sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-SGRPFTYP sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-DABTRET sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-DAUFLASS sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-JLOESCH sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-BDARLEH sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-BGRPFSUM sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-BABTRAKT sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-SWHRGRPF sy-vline 
WA_RBCT_ENCUMBRANCE_EXTRACT_STR-RBELAST sy-vline      INTO ld_text SEPARATED BY SPACE.

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