ABAP Select data from SAP table WPLANOGR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WPLANOGR
*  INTO TABLE @DATA(IT_WPLANOGR2).
*--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_WPLANOGR INDEX 1 INTO DATA(WA_WPLANOGR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WPLANOGR>-MATNR = 1.
<WPLANOGR>-MAKTX = 1.
<WPLANOGR>-MULT_PLACE = 1.
<WPLANOGR>-MULT_COUNT = 1.
<WPLANOGR>-MEINH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WPLANOGR-LMNUM, sy-vline,
  WA_WPLANOGR-EAN11, sy-vline,
  WA_WPLANOGR-ATTYP, sy-vline,
  WA_WPLANOGR-MATKL, sy-vline,
  WA_WPLANOGR-HOEHE, sy-vline,
  WA_WPLANOGR-BREIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WPLANOGR 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_WPLANOGR 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_WPLANOGR INTO WA_WPLANOGR.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEABM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-MEABM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-MEABM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-VRKME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WPLANOGR-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPLANOGR-SATNR.
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_WPLANOGR_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
MULT_PLACE TYPE STRING,
MULT_COUNT TYPE STRING,
MEINH TYPE STRING,
LMNUM TYPE STRING,
EAN11 TYPE STRING,
ATTYP TYPE STRING,
MATKL TYPE STRING,
HOEHE TYPE STRING,
BREIT TYPE STRING,
LAENG TYPE STRING,
MEABM TYPE STRING,
SORF1 TYPE STRING,
SHELF TYPE STRING,
FACING TYPE STRING,
FRONT TYPE STRING,
PRES_QNT TYPE STRING,
SHF_QNT_OPT TYPE STRING,
SHF_QNT_MAX TYPE STRING,
BSTMNG TYPE STRING,
UMSMNG TYPE STRING,
UMSGVP TYPE STRING,
EKPNN TYPE STRING,
KWAER TYPE STRING,
ENDPA TYPE STRING,
VWAER TYPE STRING,
VRKPE TYPE STRING,
VRKME TYPE STRING,
LIFNR TYPE STRING,
KOLIF TYPE STRING,
SATNR TYPE STRING,
LAYMOD_VAR TYPE STRING,
EXCLUSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WPLANOGR_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_WPLANOGR_STR-MATNR sy-vline 
WA_WPLANOGR_STR-MAKTX sy-vline 
WA_WPLANOGR_STR-MULT_PLACE sy-vline 
WA_WPLANOGR_STR-MULT_COUNT sy-vline 
WA_WPLANOGR_STR-MEINH sy-vline 
WA_WPLANOGR_STR-LMNUM sy-vline 
WA_WPLANOGR_STR-EAN11 sy-vline 
WA_WPLANOGR_STR-ATTYP sy-vline 
WA_WPLANOGR_STR-MATKL sy-vline 
WA_WPLANOGR_STR-HOEHE sy-vline 
WA_WPLANOGR_STR-BREIT sy-vline 
WA_WPLANOGR_STR-LAENG sy-vline 
WA_WPLANOGR_STR-MEABM sy-vline 
WA_WPLANOGR_STR-SORF1 sy-vline 
WA_WPLANOGR_STR-SHELF sy-vline 
WA_WPLANOGR_STR-FACING sy-vline 
WA_WPLANOGR_STR-FRONT sy-vline 
WA_WPLANOGR_STR-PRES_QNT sy-vline 
WA_WPLANOGR_STR-SHF_QNT_OPT sy-vline 
WA_WPLANOGR_STR-SHF_QNT_MAX sy-vline 
WA_WPLANOGR_STR-BSTMNG sy-vline 
WA_WPLANOGR_STR-UMSMNG sy-vline 
WA_WPLANOGR_STR-UMSGVP sy-vline 
WA_WPLANOGR_STR-EKPNN sy-vline 
WA_WPLANOGR_STR-KWAER sy-vline 
WA_WPLANOGR_STR-ENDPA sy-vline 
WA_WPLANOGR_STR-VWAER sy-vline 
WA_WPLANOGR_STR-VRKPE sy-vline 
WA_WPLANOGR_STR-VRKME sy-vline 
WA_WPLANOGR_STR-LIFNR sy-vline 
WA_WPLANOGR_STR-KOLIF sy-vline 
WA_WPLANOGR_STR-SATNR sy-vline 
WA_WPLANOGR_STR-LAYMOD_VAR sy-vline 
WA_WPLANOGR_STR-EXCLUSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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