ABAP Select data from SAP table GOPLANT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GOPLANT
*  INTO TABLE @DATA(IT_GOPLANT2).
*--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_GOPLANT INDEX 1 INTO DATA(WA_GOPLANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GOPLANT>-NAME1 = 1.
<GOPLANT>-LAND1 = 1.
<GOPLANT>-BWKEY = 1.
<GOPLANT>-CHAZV = 1.
<GOPLANT>-XEINK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GOPLANT-XBKNG, sy-vline,
  WA_GOPLANT-XVKBW, sy-vline,
  WA_GOPLANT-BUKRS_FOR_STOCK, sy-vline,
  WA_GOPLANT-KTOPL, sy-vline,
  WA_GOPLANT-KZXAB, sy-vline,
  WA_GOPLANT-XWMHD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GOPLANT 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_GOPLANT 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_GOPLANT INTO WA_GOPLANT.


*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_GOPLANT_STR, 
NAME1 TYPE STRING,
LAND1 TYPE STRING,
BWKEY TYPE STRING,
CHAZV TYPE STRING,
XEINK TYPE STRING,
XBKNG TYPE STRING,
XVKBW TYPE STRING,
BUKRS_FOR_STOCK TYPE STRING,
KTOPL TYPE STRING,
KZXAB TYPE STRING,
XWMHD TYPE STRING,
XCAUT TYPE STRING,
IMPDA TYPE STRING,
KOPIM TYPE STRING,
DKWEG TYPE STRING,
KZGEB TYPE STRING,
BRAZIL TYPE STRING,
FABKL TYPE STRING,
CAPID TYPE STRING,
STLAN TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GOPLANT_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_GOPLANT_STR-NAME1 sy-vline 
WA_GOPLANT_STR-LAND1 sy-vline 
WA_GOPLANT_STR-BWKEY sy-vline 
WA_GOPLANT_STR-CHAZV sy-vline 
WA_GOPLANT_STR-XEINK sy-vline 
WA_GOPLANT_STR-XBKNG sy-vline 
WA_GOPLANT_STR-XVKBW sy-vline 
WA_GOPLANT_STR-BUKRS_FOR_STOCK sy-vline 
WA_GOPLANT_STR-KTOPL sy-vline 
WA_GOPLANT_STR-KZXAB sy-vline 
WA_GOPLANT_STR-XWMHD sy-vline 
WA_GOPLANT_STR-XCAUT sy-vline 
WA_GOPLANT_STR-IMPDA sy-vline 
WA_GOPLANT_STR-KOPIM sy-vline 
WA_GOPLANT_STR-DKWEG sy-vline 
WA_GOPLANT_STR-KZGEB sy-vline 
WA_GOPLANT_STR-BRAZIL sy-vline 
WA_GOPLANT_STR-FABKL sy-vline 
WA_GOPLANT_STR-CAPID sy-vline 
WA_GOPLANT_STR-STLAN sy-vline 
WA_GOPLANT_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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