ABAP Select data from SAP table REP_EAPS_HU_STR_REP_42 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REP_EAPS_HU_STR_REP_42 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 REP_EAPS_HU_STR_REP_42. 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 REP_EAPS_HU_STR_REP_42 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_REP_EAPS_HU_STR_REP_42 TYPE STANDARD TABLE OF REP_EAPS_HU_STR_REP_42,
      WA_REP_EAPS_HU_STR_REP_42 TYPE REP_EAPS_HU_STR_REP_42,
      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: <REP_EAPS_HU_STR_REP_42> TYPE REP_EAPS_HU_STR_REP_42.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_REP_EAPS_HU_STR_REP_42.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM REP_EAPS_HU_STR_REP_42
  INTO TABLE IT_REP_EAPS_HU_STR_REP_42.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REP_EAPS_HU_STR_REP_42
*  INTO TABLE @DATA(IT_REP_EAPS_HU_STR_REP_422).
*--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_REP_EAPS_HU_STR_REP_42 INDEX 1 INTO DATA(WA_REP_EAPS_HU_STR_REP_422).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REP_EAPS_HU_STR_REP_42 ASSIGNING <REP_EAPS_HU_STR_REP_42>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REP_EAPS_HU_STR_REP_42>-INTKEY = 1.
<REP_EAPS_HU_STR_REP_42>-BUKRS = 1.
<REP_EAPS_HU_STR_REP_42>-GSBER = 1.
<REP_EAPS_HU_STR_REP_42>-LINENR = 1.
<REP_EAPS_HU_STR_REP_42>-ACCOUNT = 1.

ENDLOOP.

LOOP AT IT_REP_EAPS_HU_STR_REP_42 INTO WA_REP_EAPS_HU_STR_REP_42.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REP_EAPS_HU_STR_REP_42-LINEFACTOR, sy-vline,
  WA_REP_EAPS_HU_STR_REP_42-ITEMNAME1, sy-vline,
  WA_REP_EAPS_HU_STR_REP_42-ITEMNAME2, sy-vline,
  WA_REP_EAPS_HU_STR_REP_42-ITEMNAME3, sy-vline,
  WA_REP_EAPS_HU_STR_REP_42-LINETEXT, sy-vline,
  WA_REP_EAPS_HU_STR_REP_42-ROWCOLOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REP_EAPS_HU_STR_REP_42 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_REP_EAPS_HU_STR_REP_42 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_REP_EAPS_HU_STR_REP_42 INTO WA_REP_EAPS_HU_STR_REP_42.


*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_REP_EAPS_HU_STR_REP_42_STR, 
INTKEY TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
LINENR TYPE STRING,
ACCOUNT TYPE STRING,
LINEFACTOR TYPE STRING,
ITEMNAME1 TYPE STRING,
ITEMNAME2 TYPE STRING,
ITEMNAME3 TYPE STRING,
LINETEXT TYPE STRING,
ROWCOLOR TYPE STRING,
VSUM TYPE STRING,
BSUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REP_EAPS_HU_STR_REP_42_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_REP_EAPS_HU_STR_REP_42_STR-INTKEY sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-BUKRS sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-GSBER sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-LINENR sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-ACCOUNT sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-LINEFACTOR sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-ITEMNAME1 sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-ITEMNAME2 sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-ITEMNAME3 sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-LINETEXT sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-ROWCOLOR sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-VSUM sy-vline 
WA_REP_EAPS_HU_STR_REP_42_STR-BSUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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