ABAP Select data from SAP table RJHA6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJHA6 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 RJHA6. 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 RJHA6 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_RJHA6 TYPE STANDARD TABLE OF RJHA6,
      WA_RJHA6 TYPE RJHA6,
      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: <RJHA6> TYPE RJHA6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJHA6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJHA6
  INTO TABLE IT_RJHA6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHA6
*  INTO TABLE @DATA(IT_RJHA62).
*--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_RJHA6 INDEX 1 INTO DATA(WA_RJHA62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJHA6 ASSIGNING <RJHA6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHA6>-FRAME1 = 1.
<RJHA6>-FRAME2 = 1.
<RJHA6>-FRAME3 = 1.
<RJHA6>-FRAME4 = 1.
<RJHA6>-TEXT01 = 1.

ENDLOOP.

LOOP AT IT_RJHA6 INTO WA_RJHA6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHA6-TEXT02, sy-vline,
  WA_RJHA6-TEXT03, sy-vline,
  WA_RJHA6-SEL_AG, sy-vline,
  WA_RJHA6-SEL_AG_BOX, sy-vline,
  WA_RJHA6-SEL_IN, sy-vline,
  WA_RJHA6-SEL_IN_BOX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHA6 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_RJHA6 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_RJHA6 INTO WA_RJHA6.


*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_RJHA6_STR, 
FRAME1 TYPE STRING,
FRAME2 TYPE STRING,
FRAME3 TYPE STRING,
FRAME4 TYPE STRING,
TEXT01 TYPE STRING,
TEXT02 TYPE STRING,
TEXT03 TYPE STRING,
SEL_AG TYPE STRING,
SEL_AG_BOX TYPE STRING,
SEL_IN TYPE STRING,
SEL_IN_BOX TYPE STRING,
SEL_RE TYPE STRING,
SEL_RE_BOX TYPE STRING,
SEL_RG TYPE STRING,
SEL_RG_BOX TYPE STRING,
SEL_VM TYPE STRING,
SEL_VM_BOX TYPE STRING,
SEL_VS TYPE STRING,
SEL_VS_BOX TYPE STRING,
TRENN_KZ1 TYPE STRING,
SLASH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHA6_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_RJHA6_STR-FRAME1 sy-vline 
WA_RJHA6_STR-FRAME2 sy-vline 
WA_RJHA6_STR-FRAME3 sy-vline 
WA_RJHA6_STR-FRAME4 sy-vline 
WA_RJHA6_STR-TEXT01 sy-vline 
WA_RJHA6_STR-TEXT02 sy-vline 
WA_RJHA6_STR-TEXT03 sy-vline 
WA_RJHA6_STR-SEL_AG sy-vline 
WA_RJHA6_STR-SEL_AG_BOX sy-vline 
WA_RJHA6_STR-SEL_IN sy-vline 
WA_RJHA6_STR-SEL_IN_BOX sy-vline 
WA_RJHA6_STR-SEL_RE sy-vline 
WA_RJHA6_STR-SEL_RE_BOX sy-vline 
WA_RJHA6_STR-SEL_RG sy-vline 
WA_RJHA6_STR-SEL_RG_BOX sy-vline 
WA_RJHA6_STR-SEL_VM sy-vline 
WA_RJHA6_STR-SEL_VM_BOX sy-vline 
WA_RJHA6_STR-SEL_VS sy-vline 
WA_RJHA6_STR-SEL_VS_BOX sy-vline 
WA_RJHA6_STR-TRENN_KZ1 sy-vline 
WA_RJHA6_STR-SLASH sy-vline      INTO ld_text SEPARATED BY SPACE.

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