ABAP Select data from SAP table WISO_BAIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WISO_BAIT
*  INTO TABLE @DATA(IT_WISO_BAIT2).
*--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_WISO_BAIT INDEX 1 INTO DATA(WA_WISO_BAIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WISO_BAIT>-UNAVAIL_FLAG = 1.
<WISO_BAIT>-THIRD_PTY = 1.
<WISO_BAIT>-NAME_PLANT_DLV = 1.
<WISO_BAIT>-CITY_PLANT_DLV = 1.
<WISO_BAIT>-ITEM_CATEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WISO_BAIT-PO_ITEM_CAT, sy-vline,
  WA_WISO_BAIT-PO_ITEM_CAT_DESC, sy-vline,
  WA_WISO_BAIT-REA_FOR_RE_DESCR, sy-vline,
  WA_WISO_BAIT-MSG_FLAG, sy-vline,
  WA_WISO_BAIT-MAT_ID_INPUT, sy-vline,
  WA_WISO_BAIT-EAN_UPC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WISO_BAIT 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_WISO_BAIT 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_WISO_BAIT INTO WA_WISO_BAIT.


*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 EAN11, internal->external for field EAN_UPC
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_WISO_BAIT-EAN_UPC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISO_BAIT-EAN_UPC.
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_WISO_BAIT_STR, 
UNAVAIL_FLAG TYPE STRING,
THIRD_PTY TYPE STRING,
NAME_PLANT_DLV TYPE STRING,
CITY_PLANT_DLV TYPE STRING,
ITEM_CATEG TYPE STRING,
PO_ITEM_CAT TYPE STRING,
PO_ITEM_CAT_DESC TYPE STRING,
REA_FOR_RE_DESCR TYPE STRING,
MSG_FLAG TYPE STRING,
MAT_ID_INPUT TYPE STRING,
EAN_UPC TYPE STRING,
T184_KEY TYPE STRING,
ITMCAT_MANUAL TYPE STRING,
ITEM_CATEG_DESCR TYPE STRING,
DLV_CLLCT TYPE STRING,
DLV_CLLCT_MANUAL TYPE STRING,
SHIP_POINT TYPE STRING,
DLV_GROUP TYPE STRING,
PLANT_MANUAL TYPE STRING,
MARKED TYPE STRING,
QUAN_REF_OPEN TYPE STRING,
REA_RE_MANUAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WISO_BAIT_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_WISO_BAIT_STR-UNAVAIL_FLAG sy-vline 
WA_WISO_BAIT_STR-THIRD_PTY sy-vline 
WA_WISO_BAIT_STR-NAME_PLANT_DLV sy-vline 
WA_WISO_BAIT_STR-CITY_PLANT_DLV sy-vline 
WA_WISO_BAIT_STR-ITEM_CATEG sy-vline 
WA_WISO_BAIT_STR-PO_ITEM_CAT sy-vline 
WA_WISO_BAIT_STR-PO_ITEM_CAT_DESC sy-vline 
WA_WISO_BAIT_STR-REA_FOR_RE_DESCR sy-vline 
WA_WISO_BAIT_STR-MSG_FLAG sy-vline 
WA_WISO_BAIT_STR-MAT_ID_INPUT sy-vline 
WA_WISO_BAIT_STR-EAN_UPC sy-vline 
WA_WISO_BAIT_STR-T184_KEY sy-vline 
WA_WISO_BAIT_STR-ITMCAT_MANUAL sy-vline 
WA_WISO_BAIT_STR-ITEM_CATEG_DESCR sy-vline 
WA_WISO_BAIT_STR-DLV_CLLCT sy-vline 
WA_WISO_BAIT_STR-DLV_CLLCT_MANUAL sy-vline 
WA_WISO_BAIT_STR-SHIP_POINT sy-vline 
WA_WISO_BAIT_STR-DLV_GROUP sy-vline 
WA_WISO_BAIT_STR-PLANT_MANUAL sy-vline 
WA_WISO_BAIT_STR-MARKED sy-vline 
WA_WISO_BAIT_STR-QUAN_REF_OPEN sy-vline 
WA_WISO_BAIT_STR-REA_RE_MANUAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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