ABAP Select data from SAP table OIJ05_S_NWB_VARIANT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIJ05_S_NWB_VARIANT 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 OIJ05_S_NWB_VARIANT. 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 OIJ05_S_NWB_VARIANT 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_OIJ05_S_NWB_VARIANT TYPE STANDARD TABLE OF OIJ05_S_NWB_VARIANT,
      WA_OIJ05_S_NWB_VARIANT TYPE OIJ05_S_NWB_VARIANT,
      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: <OIJ05_S_NWB_VARIANT> TYPE OIJ05_S_NWB_VARIANT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIJ05_S_NWB_VARIANT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIJ05_S_NWB_VARIANT
  INTO TABLE IT_OIJ05_S_NWB_VARIANT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ05_S_NWB_VARIANT
*  INTO TABLE @DATA(IT_OIJ05_S_NWB_VARIANT2).
*--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_OIJ05_S_NWB_VARIANT INDEX 1 INTO DATA(WA_OIJ05_S_NWB_VARIANT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJ05_S_NWB_VARIANT ASSIGNING <OIJ05_S_NWB_VARIANT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ05_S_NWB_VARIANT>-VAR_NAME = 1.
<OIJ05_S_NWB_VARIANT>-NWBSEARCH = 1.
<OIJ05_S_NWB_VARIANT>-MAXSEL = 1.
<OIJ05_S_NWB_VARIANT>-LOADINGPT = 1.
<OIJ05_S_NWB_VARIANT>-UNLOADINGPT = 1.

ENDLOOP.

LOOP AT IT_OIJ05_S_NWB_VARIANT INTO WA_OIJ05_S_NWB_VARIANT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ05_S_NWB_VARIANT-MATNR, sy-vline,
  WA_OIJ05_S_NWB_VARIANT-TSYST, sy-vline,
  WA_OIJ05_S_NWB_VARIANT-NOMNR, sy-vline,
  WA_OIJ05_S_NWB_VARIANT-NOMTK, sy-vline,
  WA_OIJ05_S_NWB_VARIANT-LOADINGDT, sy-vline,
  WA_OIJ05_S_NWB_VARIANT-DELIVERYDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ05_S_NWB_VARIANT 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_OIJ05_S_NWB_VARIANT 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_OIJ05_S_NWB_VARIANT INTO WA_OIJ05_S_NWB_VARIANT.


*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_OIJ05_S_NWB_VARIANT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NOMTK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_S_NWB_VARIANT-NOMTK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-NOMTK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NMVEHICLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_S_NWB_VARIANT-NMVEHICLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-NMVEHICLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_S_NWB_VARIANT-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NMCARRIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_S_NWB_VARIANT-NMCARRIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-NMCARRIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NMSHIPPER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_S_NWB_VARIANT-NMSHIPPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_S_NWB_VARIANT-NMSHIPPER.
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_OIJ05_S_NWB_VARIANT_STR, 
VAR_NAME TYPE STRING,
NWBSEARCH TYPE STRING,
MAXSEL TYPE STRING,
LOADINGPT TYPE STRING,
UNLOADINGPT TYPE STRING,
MATNR TYPE STRING,
TSYST TYPE STRING,
NOMNR TYPE STRING,
NOMTK TYPE STRING,
LOADINGDT TYPE STRING,
DELIVERYDT TYPE STRING,
MOT TYPE STRING,
CYCLEID TYPE STRING,
NMVEHICLE TYPE STRING,
NOMST TYPE STRING,
INCOMPLETE_FLAG TYPE STRING,
DOCIND TYPE STRING,
DOCNR TYPE STRING,
CREATECHANGEBY TYPE STRING,
CREATECHANGEDT TYPE STRING,
NMCARRIER TYPE STRING,
NMSHIPPER TYPE STRING,
EVENT_TYPE TYPE STRING,
EVENT_DATE TYPE STRING,
NMWERK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ05_S_NWB_VARIANT_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_OIJ05_S_NWB_VARIANT_STR-VAR_NAME sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NWBSEARCH sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-MAXSEL sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-LOADINGPT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-UNLOADINGPT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-MATNR sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-TSYST sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NOMNR sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NOMTK sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-LOADINGDT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-DELIVERYDT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-MOT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-CYCLEID sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NMVEHICLE sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NOMST sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-INCOMPLETE_FLAG sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-DOCIND sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-DOCNR sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-CREATECHANGEBY sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-CREATECHANGEDT sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NMCARRIER sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NMSHIPPER sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-EVENT_TYPE sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-EVENT_DATE sy-vline 
WA_OIJ05_S_NWB_VARIANT_STR-NMWERK sy-vline      INTO ld_text SEPARATED BY SPACE.

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