ABAP Select data from SAP table RJHATSTATO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHATSTATO
*  INTO TABLE @DATA(IT_RJHATSTATO2).
*--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_RJHATSTATO INDEX 1 INTO DATA(WA_RJHATSTATO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHATSTATO>-AVM_NR = 1.
<RJHATSTATO>-SATZART_OL = 1.
<RJHATSTATO>-POS_NR = 1.
<RJHATSTATO>-UPOS_NR = 1.
<RJHATSTATO>-EIN_NR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHATSTATO-MOTIV, sy-vline,
  WA_RJHATSTATO-STAT_EBENE, sy-vline,
  WA_RJHATSTATO-AENVERS_NR_OL, sy-vline,
  WA_RJHATSTATO-STATUSK, sy-vline,
  WA_RJHATSTATO-MERK_ID, sy-vline,
  WA_RJHATSTATO-MERKWERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHATSTATO 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_RJHATSTATO 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_RJHATSTATO INTO WA_RJHATSTATO.


*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 AVM_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHATSTATO-AVM_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHATSTATO-AVM_NR.
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_RJHATSTATO_STR, 
AVM_NR TYPE STRING,
SATZART_OL TYPE STRING,
POS_NR TYPE STRING,
UPOS_NR TYPE STRING,
EIN_NR TYPE STRING,
MOTIV TYPE STRING,
STAT_EBENE TYPE STRING,
AENVERS_NR_OL TYPE STRING,
STATUSK TYPE STRING,
MERK_ID TYPE STRING,
MERKWERT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHATSTATO_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_RJHATSTATO_STR-AVM_NR sy-vline 
WA_RJHATSTATO_STR-SATZART_OL sy-vline 
WA_RJHATSTATO_STR-POS_NR sy-vline 
WA_RJHATSTATO_STR-UPOS_NR sy-vline 
WA_RJHATSTATO_STR-EIN_NR sy-vline 
WA_RJHATSTATO_STR-MOTIV sy-vline 
WA_RJHATSTATO_STR-STAT_EBENE sy-vline 
WA_RJHATSTATO_STR-AENVERS_NR_OL sy-vline 
WA_RJHATSTATO_STR-STATUSK sy-vline 
WA_RJHATSTATO_STR-MERK_ID sy-vline 
WA_RJHATSTATO_STR-MERKWERT sy-vline      INTO ld_text SEPARATED BY SPACE.

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