ABAP Select data from SAP table RJHKOSU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHKOSU
*  INTO TABLE @DATA(IT_RJHKOSU2).
*--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_RJHKOSU INDEX 1 INTO DATA(WA_RJHKOSU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHKOSU>-SAERBMO = 1.
<RJHKOSU>-SAERBMM = 1.
<RJHKOSU>-SAERBME = 1.
<RJHKOSU>-SAEBOMO = 1.
<RJHKOSU>-SAEBOMM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHKOSU-SAEBOME, sy-vline,
  WA_RJHKOSU-SAEMRNRMO, sy-vline,
  WA_RJHKOSU-SAEMRNRMM, sy-vline,
  WA_RJHKOSU-SAEMRNRME, sy-vline,
  WA_RJHKOSU-SAEMBNBMO, sy-vline,
  WA_RJHKOSU-SAEMBNBMM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHKOSU 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_RJHKOSU 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_RJHKOSU INTO WA_RJHKOSU.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RJHKOSU_STR, 
SAERBMO TYPE STRING,
SAERBMM TYPE STRING,
SAERBME TYPE STRING,
SAEBOMO TYPE STRING,
SAEBOMM TYPE STRING,
SAEBOME TYPE STRING,
SAEMRNRMO TYPE STRING,
SAEMRNRMM TYPE STRING,
SAEMRNRME TYPE STRING,
SAEMBNBMO TYPE STRING,
SAEMBNBMM TYPE STRING,
SAEMBNBME TYPE STRING,
SAERFRRMO TYPE STRING,
SAERFRRMM TYPE STRING,
SAERFRRME TYPE STRING,
SAEBFRMO TYPE STRING,
SAEBFRMM TYPE STRING,
SAEBFRME TYPE STRING,
SAEFRMO TYPE STRING,
SAEFRMM TYPE STRING,
SAEFRME TYPE STRING,
SAEMFRBMO TYPE STRING,
SAEMFRBMM TYPE STRING,
SAEMFRBME TYPE STRING,
SAEVBMO TYPE STRING,
SAEVBMM TYPE STRING,
SAEVBME TYPE STRING,
SAEMAMO TYPE STRING,
SAEMAMM TYPE STRING,
SAEMAME TYPE STRING,
SAEMRMO TYPE STRING,
SAEMRMM TYPE STRING,
SAEMRME TYPE STRING,
SAEMBMO TYPE STRING,
SAEMBMM TYPE STRING,
SAEMBME TYPE STRING,
SFKRBMO TYPE STRING,
SFKRBMM TYPE STRING,
SFKRBME TYPE STRING,
SFKBOMO TYPE STRING,
SFKBOMM TYPE STRING,
SFKBOME TYPE STRING,
SFKMRNRMO TYPE STRING,
SFKMRNRMM TYPE STRING,
SFKMRNRME TYPE STRING,
SFKMBNBMO TYPE STRING,
SFKMBNBMM TYPE STRING,
SFKMBNBME TYPE STRING,
SFKRFRRMO TYPE STRING,
SFKRFRRMM TYPE STRING,
SFKRFRRME TYPE STRING,
SFKBFRMO TYPE STRING,
SFKBFRMM TYPE STRING,
SFKBFRME TYPE STRING,
SFKFRMO TYPE STRING,
SFKFRMM TYPE STRING,
SFKFRME TYPE STRING,
SFKMFRBMO TYPE STRING,
SFKMFRBMM TYPE STRING,
SFKMFRBME TYPE STRING,
SFKVBMO TYPE STRING,
SFKVBMM TYPE STRING,
SFKVBME TYPE STRING,
SFKMAMO TYPE STRING,
SFKMAMM TYPE STRING,
SFKMAME TYPE STRING,
SFKMRMO TYPE STRING,
SFKMRMM TYPE STRING,
SFKMRME TYPE STRING,
SFKMBMO TYPE STRING,
SFKMBMM TYPE STRING,
SFKMBME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHKOSU_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_RJHKOSU_STR-SAERBMO sy-vline 
WA_RJHKOSU_STR-SAERBMM sy-vline 
WA_RJHKOSU_STR-SAERBME sy-vline 
WA_RJHKOSU_STR-SAEBOMO sy-vline 
WA_RJHKOSU_STR-SAEBOMM sy-vline 
WA_RJHKOSU_STR-SAEBOME sy-vline 
WA_RJHKOSU_STR-SAEMRNRMO sy-vline 
WA_RJHKOSU_STR-SAEMRNRMM sy-vline 
WA_RJHKOSU_STR-SAEMRNRME sy-vline 
WA_RJHKOSU_STR-SAEMBNBMO sy-vline 
WA_RJHKOSU_STR-SAEMBNBMM sy-vline 
WA_RJHKOSU_STR-SAEMBNBME sy-vline 
WA_RJHKOSU_STR-SAERFRRMO sy-vline 
WA_RJHKOSU_STR-SAERFRRMM sy-vline 
WA_RJHKOSU_STR-SAERFRRME sy-vline 
WA_RJHKOSU_STR-SAEBFRMO sy-vline 
WA_RJHKOSU_STR-SAEBFRMM sy-vline 
WA_RJHKOSU_STR-SAEBFRME sy-vline 
WA_RJHKOSU_STR-SAEFRMO sy-vline 
WA_RJHKOSU_STR-SAEFRMM sy-vline 
WA_RJHKOSU_STR-SAEFRME sy-vline 
WA_RJHKOSU_STR-SAEMFRBMO sy-vline 
WA_RJHKOSU_STR-SAEMFRBMM sy-vline 
WA_RJHKOSU_STR-SAEMFRBME sy-vline 
WA_RJHKOSU_STR-SAEVBMO sy-vline 
WA_RJHKOSU_STR-SAEVBMM sy-vline 
WA_RJHKOSU_STR-SAEVBME sy-vline 
WA_RJHKOSU_STR-SAEMAMO sy-vline 
WA_RJHKOSU_STR-SAEMAMM sy-vline 
WA_RJHKOSU_STR-SAEMAME sy-vline 
WA_RJHKOSU_STR-SAEMRMO sy-vline 
WA_RJHKOSU_STR-SAEMRMM sy-vline 
WA_RJHKOSU_STR-SAEMRME sy-vline 
WA_RJHKOSU_STR-SAEMBMO sy-vline 
WA_RJHKOSU_STR-SAEMBMM sy-vline 
WA_RJHKOSU_STR-SAEMBME sy-vline 
WA_RJHKOSU_STR-SFKRBMO sy-vline 
WA_RJHKOSU_STR-SFKRBMM sy-vline 
WA_RJHKOSU_STR-SFKRBME sy-vline 
WA_RJHKOSU_STR-SFKBOMO sy-vline 
WA_RJHKOSU_STR-SFKBOMM sy-vline 
WA_RJHKOSU_STR-SFKBOME sy-vline 
WA_RJHKOSU_STR-SFKMRNRMO sy-vline 
WA_RJHKOSU_STR-SFKMRNRMM sy-vline 
WA_RJHKOSU_STR-SFKMRNRME sy-vline 
WA_RJHKOSU_STR-SFKMBNBMO sy-vline 
WA_RJHKOSU_STR-SFKMBNBMM sy-vline 
WA_RJHKOSU_STR-SFKMBNBME sy-vline 
WA_RJHKOSU_STR-SFKRFRRMO sy-vline 
WA_RJHKOSU_STR-SFKRFRRMM sy-vline 
WA_RJHKOSU_STR-SFKRFRRME sy-vline 
WA_RJHKOSU_STR-SFKBFRMO sy-vline 
WA_RJHKOSU_STR-SFKBFRMM sy-vline 
WA_RJHKOSU_STR-SFKBFRME sy-vline 
WA_RJHKOSU_STR-SFKFRMO sy-vline 
WA_RJHKOSU_STR-SFKFRMM sy-vline 
WA_RJHKOSU_STR-SFKFRME sy-vline 
WA_RJHKOSU_STR-SFKMFRBMO sy-vline 
WA_RJHKOSU_STR-SFKMFRBMM sy-vline 
WA_RJHKOSU_STR-SFKMFRBME sy-vline 
WA_RJHKOSU_STR-SFKVBMO sy-vline 
WA_RJHKOSU_STR-SFKVBMM sy-vline 
WA_RJHKOSU_STR-SFKVBME sy-vline 
WA_RJHKOSU_STR-SFKMAMO sy-vline 
WA_RJHKOSU_STR-SFKMAMM sy-vline 
WA_RJHKOSU_STR-SFKMAME sy-vline 
WA_RJHKOSU_STR-SFKMRMO sy-vline 
WA_RJHKOSU_STR-SFKMRMM sy-vline 
WA_RJHKOSU_STR-SFKMRME sy-vline 
WA_RJHKOSU_STR-SFKMBMO sy-vline 
WA_RJHKOSU_STR-SFKMBMM sy-vline 
WA_RJHKOSU_STR-SFKMBME sy-vline      INTO ld_text SEPARATED BY SPACE.

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