ABAP Select data from SAP table RJKWBZFM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKWBZFM
*  INTO TABLE @DATA(IT_RJKWBZFM2).
*--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_RJKWBZFM INDEX 1 INTO DATA(WA_RJKWBZFM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKWBZFM>-VERLAGSNR = 1.
<RJKWBZFM>-RZ_ANREDE = 1.
<RJKWBZFM>-RZ_LINE0 = 1.
<RJKWBZFM>-RZ_LINE1 = 1.
<RJKWBZFM>-RZ_LINE2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKWBZFM-DRERZ, sy-vline,
  WA_RJKWBZFM-PVA, sy-vline,
  WA_RJKWBZFM-NRIMJAHR_A, sy-vline,
  WA_RJKWBZFM-JAHRGANG_A, sy-vline,
  WA_RJKWBZFM-NRIMJAHR_N, sy-vline,
  WA_RJKWBZFM-JAHRGANG_N, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKWBZFM 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_RJKWBZFM 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_RJKWBZFM INTO WA_RJKWBZFM.


*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 JKWBZ, internal->external for field VERLAGSNR
CALL FUNCTION 'CONVERSION_EXIT_JKWBZ_OUTPUT'
  EXPORTING
    input =                      WA_RJKWBZFM-VERLAGSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWBZFM-VERLAGSNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field ETMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKWBZFM-ETMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWBZFM-ETMEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit JKWBZ, internal->external for field WBZKUNNR
CALL FUNCTION 'CONVERSION_EXIT_JKWBZ_OUTPUT'
  EXPORTING
    input =                      WA_RJKWBZFM-WBZKUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWBZFM-WBZKUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit JKWBZ, internal->external for field RECHZENTNR
CALL FUNCTION 'CONVERSION_EXIT_JKWBZ_OUTPUT'
  EXPORTING
    input =                      WA_RJKWBZFM-RECHZENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWBZFM-RECHZENTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit JKWBZ, internal->external for field VERTRKENNZ
CALL FUNCTION 'CONVERSION_EXIT_JKWBZ_OUTPUT'
  EXPORTING
    input =                      WA_RJKWBZFM-VERTRKENNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWBZFM-VERTRKENNZ.
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_RJKWBZFM_STR, 
VERLAGSNR TYPE STRING,
RZ_ANREDE TYPE STRING,
RZ_LINE0 TYPE STRING,
RZ_LINE1 TYPE STRING,
RZ_LINE2 TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
NRIMJAHR_A TYPE STRING,
JAHRGANG_A TYPE STRING,
NRIMJAHR_N TYPE STRING,
JAHRGANG_N TYPE STRING,
LIEFERART TYPE STRING,
BEZUGSTYP TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
LANDE TYPE STRING,
LAND1 TYPE STRING,
BEZUGGRD TYPE STRING,
REFBELEG TYPE STRING,
ETMENGE TYPE STRING,
ETMEINS TYPE STRING,
BEZPER TYPE STRING,
WEA_ANRED TYPE STRING,
WEA_LINE0 TYPE STRING,
WEA_LINE1 TYPE STRING,
WEA_LINE2 TYPE STRING,
WEA_ANSCHZUS TYPE STRING,
WEN_ANRED TYPE STRING,
WEN_LINE0 TYPE STRING,
WEN_LINE1 TYPE STRING,
WEN_LINE2 TYPE STRING,
WEN_ANSCHZUS TYPE STRING,
WBZKUNNR TYPE STRING,
AG_ANREDE TYPE STRING,
AG_LINE0 TYPE STRING,
AG_LINE1 TYPE STRING,
AG_LINE2 TYPE STRING,
RECHZENTNR TYPE STRING,
VERTRKENNZ TYPE STRING,
RZSUM_ABG TYPE STRING,
RZSUM_AEND TYPE STRING,
VTSUM_ABG TYPE STRING,
VTSUM_AEND TYPE STRING,
FILE_OUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKWBZFM_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_RJKWBZFM_STR-VERLAGSNR sy-vline 
WA_RJKWBZFM_STR-RZ_ANREDE sy-vline 
WA_RJKWBZFM_STR-RZ_LINE0 sy-vline 
WA_RJKWBZFM_STR-RZ_LINE1 sy-vline 
WA_RJKWBZFM_STR-RZ_LINE2 sy-vline 
WA_RJKWBZFM_STR-DRERZ sy-vline 
WA_RJKWBZFM_STR-PVA sy-vline 
WA_RJKWBZFM_STR-NRIMJAHR_A sy-vline 
WA_RJKWBZFM_STR-JAHRGANG_A sy-vline 
WA_RJKWBZFM_STR-NRIMJAHR_N sy-vline 
WA_RJKWBZFM_STR-JAHRGANG_N sy-vline 
WA_RJKWBZFM_STR-LIEFERART sy-vline 
WA_RJKWBZFM_STR-BEZUGSTYP sy-vline 
WA_RJKWBZFM_STR-GUELTIGVON sy-vline 
WA_RJKWBZFM_STR-GUELTIGBIS sy-vline 
WA_RJKWBZFM_STR-LANDE sy-vline 
WA_RJKWBZFM_STR-LAND1 sy-vline 
WA_RJKWBZFM_STR-BEZUGGRD sy-vline 
WA_RJKWBZFM_STR-REFBELEG sy-vline 
WA_RJKWBZFM_STR-ETMENGE sy-vline 
WA_RJKWBZFM_STR-ETMEINS sy-vline 
WA_RJKWBZFM_STR-BEZPER sy-vline 
WA_RJKWBZFM_STR-WEA_ANRED sy-vline 
WA_RJKWBZFM_STR-WEA_LINE0 sy-vline 
WA_RJKWBZFM_STR-WEA_LINE1 sy-vline 
WA_RJKWBZFM_STR-WEA_LINE2 sy-vline 
WA_RJKWBZFM_STR-WEA_ANSCHZUS sy-vline 
WA_RJKWBZFM_STR-WEN_ANRED sy-vline 
WA_RJKWBZFM_STR-WEN_LINE0 sy-vline 
WA_RJKWBZFM_STR-WEN_LINE1 sy-vline 
WA_RJKWBZFM_STR-WEN_LINE2 sy-vline 
WA_RJKWBZFM_STR-WEN_ANSCHZUS sy-vline 
WA_RJKWBZFM_STR-WBZKUNNR sy-vline 
WA_RJKWBZFM_STR-AG_ANREDE sy-vline 
WA_RJKWBZFM_STR-AG_LINE0 sy-vline 
WA_RJKWBZFM_STR-AG_LINE1 sy-vline 
WA_RJKWBZFM_STR-AG_LINE2 sy-vline 
WA_RJKWBZFM_STR-RECHZENTNR sy-vline 
WA_RJKWBZFM_STR-VERTRKENNZ sy-vline 
WA_RJKWBZFM_STR-RZSUM_ABG sy-vline 
WA_RJKWBZFM_STR-RZSUM_AEND sy-vline 
WA_RJKWBZFM_STR-VTSUM_ABG sy-vline 
WA_RJKWBZFM_STR-VTSUM_AEND sy-vline 
WA_RJKWBZFM_STR-FILE_OUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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