ABAP Select data from SAP table RM63H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM63H 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 RM63H. 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 RM63H 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_RM63H TYPE STANDARD TABLE OF RM63H,
      WA_RM63H TYPE RM63H,
      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: <RM63H> TYPE RM63H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM63H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM63H
  INTO TABLE IT_RM63H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM63H
*  INTO TABLE @DATA(IT_RM63H2).
*--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_RM63H INDEX 1 INTO DATA(WA_RM63H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM63H ASSIGNING <RM63H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM63H>-MANDT = 1.
<RM63H>-HEQNR = 1.
<RM63H>-HEQTX = 1.
<RM63H>-EQUNR = 1.
<RM63H>-EQUTX = 1.

ENDLOOP.

LOOP AT IT_RM63H INTO WA_RM63H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM63H-EQNEW, sy-vline,
  WA_RM63H-EQNTX, sy-vline,
  WA_RM63H-HSTUF, sy-vline,
  WA_RM63H-HSTPS, sy-vline,
  WA_RM63H-HEOLD, sy-vline,
  WA_RM63H-EQTXO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM63H 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_RM63H 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_RM63H INTO WA_RM63H.


*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 HEQNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63H-HEQNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63H-HEQNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63H-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63H-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQNEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63H-EQNEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63H-EQNEW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HEOLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63H-HEOLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63H-HEOLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HENEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63H-HENEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63H-HENEW.
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_RM63H_STR, 
MANDT TYPE STRING,
HEQNR TYPE STRING,
HEQTX TYPE STRING,
EQUNR TYPE STRING,
EQUTX TYPE STRING,
EQNEW TYPE STRING,
EQNTX TYPE STRING,
HSTUF TYPE STRING,
HSTPS TYPE STRING,
HEOLD TYPE STRING,
EQTXO TYPE STRING,
PSOLD TYPE STRING,
HENEW TYPE STRING,
EQTXN TYPE STRING,
PSNEW TYPE STRING,
SELKZ TYPE STRING,
HMORE TYPE STRING,
INFO_ART TYPE STRING,
DATA_SEL TYPE STRING,
APAGE TYPE STRING,
LPAGE TYPE STRING,
INHER_FL TYPE STRING,
INHER_EQ TYPE STRING,
INHER_NO TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
FCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM63H_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_RM63H_STR-MANDT sy-vline 
WA_RM63H_STR-HEQNR sy-vline 
WA_RM63H_STR-HEQTX sy-vline 
WA_RM63H_STR-EQUNR sy-vline 
WA_RM63H_STR-EQUTX sy-vline 
WA_RM63H_STR-EQNEW sy-vline 
WA_RM63H_STR-EQNTX sy-vline 
WA_RM63H_STR-HSTUF sy-vline 
WA_RM63H_STR-HSTPS sy-vline 
WA_RM63H_STR-HEOLD sy-vline 
WA_RM63H_STR-EQTXO sy-vline 
WA_RM63H_STR-PSOLD sy-vline 
WA_RM63H_STR-HENEW sy-vline 
WA_RM63H_STR-EQTXN sy-vline 
WA_RM63H_STR-PSNEW sy-vline 
WA_RM63H_STR-SELKZ sy-vline 
WA_RM63H_STR-HMORE sy-vline 
WA_RM63H_STR-INFO_ART sy-vline 
WA_RM63H_STR-DATA_SEL sy-vline 
WA_RM63H_STR-APAGE sy-vline 
WA_RM63H_STR-LPAGE sy-vline 
WA_RM63H_STR-INHER_FL sy-vline 
WA_RM63H_STR-INHER_EQ sy-vline 
WA_RM63H_STR-INHER_NO sy-vline 
WA_RM63H_STR-DATUM sy-vline 
WA_RM63H_STR-UZEIT sy-vline 
WA_RM63H_STR-FCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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