ABAP Select data from SAP table /IBS/TRB_KVV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IBS/TRB_KVV 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 /IBS/TRB_KVV. 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 /IBS/TRB_KVV 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_/IBS/TRB_KVV TYPE STANDARD TABLE OF /IBS/TRB_KVV,
      WA_/IBS/TRB_KVV TYPE /IBS/TRB_KVV,
      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: </IBS/TRB_KVV> TYPE /IBS/TRB_KVV.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IBS/TRB_KVV
  INTO TABLE IT_/IBS/TRB_KVV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IBS/TRB_KVV
*  INTO TABLE @DATA(IT_/IBS/TRB_KVV2).
*--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_/IBS/TRB_KVV INDEX 1 INTO DATA(WA_/IBS/TRB_KVV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IBS/TRB_KVV ASSIGNING </IBS/TRB_KVV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IBS/TRB_KVV>-MANDANT = 1.
</IBS/TRB_KVV>-RBDID = 1.
</IBS/TRB_KVV>-RBDNR = 1.
</IBS/TRB_KVV>-MODID = 1.
</IBS/TRB_KVV>-VERTV = 1.

ENDLOOP.

LOOP AT IT_/IBS/TRB_KVV INTO WA_/IBS/TRB_KVV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IBS/TRB_KVV-BWAEV, sy-vline,
  WA_/IBS/TRB_KVV-EFFKV, sy-vline,
  WA_/IBS/TRB_KVV-DATEK, sy-vline,
  WA_/IBS/TRB_KVV-LIBUE, sy-vline,
  WA_/IBS/TRB_KVV-VKREF, sy-vline,
  WA_/IBS/TRB_KVV-ZUBEK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IBS/TRB_KVV 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_/IBS/TRB_KVV 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_/IBS/TRB_KVV INTO WA_/IBS/TRB_KVV.


*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 RBDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-RBDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-RBDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SANLF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-SANLF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-SANLF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-PARTV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-PARTV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FINRV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-FINRV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-FINRV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_KVV-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_KVV-KOSTL.
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_/IBS/TRB_KVV_STR, 
MANDANT TYPE STRING,
RBDID TYPE STRING,
RBDNR TYPE STRING,
MODID TYPE STRING,
VERTV TYPE STRING,
BWAEV TYPE STRING,
EFFKV TYPE STRING,
DATEK TYPE STRING,
LIBUE TYPE STRING,
VKREF TYPE STRING,
ZUBEK TYPE STRING,
ZPEWB TYPE STRING,
KAUSF TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
RESE3 TYPE STRING,
SANLF TYPE STRING,
PARTV TYPE STRING,
FINRV TYPE STRING,
REFEV TYPE STRING,
DUE_DATE TYPE STRING,
OBLIGO TYPE STRING,
PDAVS TYPE STRING,
BIZ_TYP TYPE STRING,
BIZ_TYP_LGAAP TYPE STRING,
FLG_REALL TYPE STRING,
PRCTR TYPE STRING,
KOSTL TYPE STRING,
POCI_FLAG TYPE STRING,
VAL_TYPE TYPE STRING,
RS_BASIS TYPE STRING,
DELFZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IBS/TRB_KVV_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_/IBS/TRB_KVV_STR-MANDANT sy-vline 
WA_/IBS/TRB_KVV_STR-RBDID sy-vline 
WA_/IBS/TRB_KVV_STR-RBDNR sy-vline 
WA_/IBS/TRB_KVV_STR-MODID sy-vline 
WA_/IBS/TRB_KVV_STR-VERTV sy-vline 
WA_/IBS/TRB_KVV_STR-BWAEV sy-vline 
WA_/IBS/TRB_KVV_STR-EFFKV sy-vline 
WA_/IBS/TRB_KVV_STR-DATEK sy-vline 
WA_/IBS/TRB_KVV_STR-LIBUE sy-vline 
WA_/IBS/TRB_KVV_STR-VKREF sy-vline 
WA_/IBS/TRB_KVV_STR-ZUBEK sy-vline 
WA_/IBS/TRB_KVV_STR-ZPEWB sy-vline 
WA_/IBS/TRB_KVV_STR-KAUSF sy-vline 
WA_/IBS/TRB_KVV_STR-RESE1 sy-vline 
WA_/IBS/TRB_KVV_STR-RESE2 sy-vline 
WA_/IBS/TRB_KVV_STR-RESE3 sy-vline 
WA_/IBS/TRB_KVV_STR-SANLF sy-vline 
WA_/IBS/TRB_KVV_STR-PARTV sy-vline 
WA_/IBS/TRB_KVV_STR-FINRV sy-vline 
WA_/IBS/TRB_KVV_STR-REFEV sy-vline 
WA_/IBS/TRB_KVV_STR-DUE_DATE sy-vline 
WA_/IBS/TRB_KVV_STR-OBLIGO sy-vline 
WA_/IBS/TRB_KVV_STR-PDAVS sy-vline 
WA_/IBS/TRB_KVV_STR-BIZ_TYP sy-vline 
WA_/IBS/TRB_KVV_STR-BIZ_TYP_LGAAP sy-vline 
WA_/IBS/TRB_KVV_STR-FLG_REALL sy-vline 
WA_/IBS/TRB_KVV_STR-PRCTR sy-vline 
WA_/IBS/TRB_KVV_STR-KOSTL sy-vline 
WA_/IBS/TRB_KVV_STR-POCI_FLAG sy-vline 
WA_/IBS/TRB_KVV_STR-VAL_TYPE sy-vline 
WA_/IBS/TRB_KVV_STR-RS_BASIS sy-vline 
WA_/IBS/TRB_KVV_STR-DELFZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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