ABAP Select data from SAP table IDWTS_KR01_COMPCD_PARTNER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDWTS_KR01_COMPCD_PARTNER 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 IDWTS_KR01_COMPCD_PARTNER. 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 IDWTS_KR01_COMPCD_PARTNER 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_IDWTS_KR01_COMPCD_PARTNER TYPE STANDARD TABLE OF IDWTS_KR01_COMPCD_PARTNER,
      WA_IDWTS_KR01_COMPCD_PARTNER TYPE IDWTS_KR01_COMPCD_PARTNER,
      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: <IDWTS_KR01_COMPCD_PARTNER> TYPE IDWTS_KR01_COMPCD_PARTNER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDWTS_KR01_COMPCD_PARTNER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDWTS_KR01_COMPCD_PARTNER
  INTO TABLE IT_IDWTS_KR01_COMPCD_PARTNER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDWTS_KR01_COMPCD_PARTNER
*  INTO TABLE @DATA(IT_IDWTS_KR01_COMPCD_PARTNER2).
*--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_IDWTS_KR01_COMPCD_PARTNER INDEX 1 INTO DATA(WA_IDWTS_KR01_COMPCD_PARTNER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDWTS_KR01_COMPCD_PARTNER ASSIGNING <IDWTS_KR01_COMPCD_PARTNER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDWTS_KR01_COMPCD_PARTNER>-BUKRS = 1.
<IDWTS_KR01_COMPCD_PARTNER>-BUPLA = 1.
<IDWTS_KR01_COMPCD_PARTNER>-PARTNERNO = 1.
<IDWTS_KR01_COMPCD_PARTNER>-NO_OF_PAGES = 1.
<IDWTS_KR01_COMPCD_PARTNER>-PAGE_DISPLAY = 1.

ENDLOOP.

LOOP AT IT_IDWTS_KR01_COMPCD_PARTNER INTO WA_IDWTS_KR01_COMPCD_PARTNER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDWTS_KR01_COMPCD_PARTNER-BUTXT, sy-vline,
  WA_IDWTS_KR01_COMPCD_PARTNER-KR_TAXOFF_NAME, sy-vline,
  WA_IDWTS_KR01_COMPCD_PARTNER-WT_TAXREF1_VAL, sy-vline,
  WA_IDWTS_KR01_COMPCD_PARTNER-WT_TAXREF2_VAL, sy-vline,
  WA_IDWTS_KR01_COMPCD_PARTNER-LANDX, sy-vline,
  WA_IDWTS_KR01_COMPCD_PARTNER-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDWTS_KR01_COMPCD_PARTNER 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_IDWTS_KR01_COMPCD_PARTNER 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_IDWTS_KR01_COMPCD_PARTNER INTO WA_IDWTS_KR01_COMPCD_PARTNER.


*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 GJAHR, internal->external for field YEAR_SIGNATURE
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDWTS_KR01_COMPCD_PARTNER-YEAR_SIGNATURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDWTS_KR01_COMPCD_PARTNER-YEAR_SIGNATURE.
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_IDWTS_KR01_COMPCD_PARTNER_STR, 
BUKRS TYPE STRING,
BUPLA TYPE STRING,
PARTNERNO TYPE STRING,
NO_OF_PAGES TYPE STRING,
PAGE_DISPLAY TYPE STRING,
BUTXT TYPE STRING,
KR_TAXOFF_NAME TYPE STRING,
WT_TAXREF1_VAL TYPE STRING,
WT_TAXREF2_VAL TYPE STRING,
LANDX TYPE STRING,
COUNTRY TYPE STRING,
NAME_COMPCD TYPE STRING,
KR_REPRES TYPE STRING,
CITY1_COMPCD TYPE STRING,
STREETCODE_COMPCD TYPE STRING,
NAME_PARTNER TYPE STRING,
NAME_PARTNER_1 TYPE STRING,
STCD2 TYPE STRING,
CITY1_PARTNER TYPE STRING,
STREETCODE_PARTNER TYPE STRING,
J_1KFREPRE TYPE STRING,
STCD1 TYPE STRING,
YEAR_SIGNATURE TYPE STRING,
MONTH_SIGNATURE TYPE STRING,
DAY_SIGNATURE TYPE STRING,
INDEX_SIGNATURE TYPE STRING,
STKZN TYPE STRING,
WT_WTSTCD TYPE STRING,
CITY1_PARTNER_1 TYPE STRING,
STREETCODE_PARTNER_1 TYPE STRING,
WT_WTSTCD_1 TYPE STRING,
QSREC TYPE STRING,
QEKAR TYPE STRING,
QEKAR1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDWTS_KR01_COMPCD_PARTNER_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_IDWTS_KR01_COMPCD_PARTNER_STR-BUKRS sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-BUPLA sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-PARTNERNO sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-NO_OF_PAGES sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-PAGE_DISPLAY sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-BUTXT sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-KR_TAXOFF_NAME sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-WT_TAXREF1_VAL sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-WT_TAXREF2_VAL sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-LANDX sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-COUNTRY sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-NAME_COMPCD sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-KR_REPRES sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-CITY1_COMPCD sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STREETCODE_COMPCD sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-NAME_PARTNER sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-NAME_PARTNER_1 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STCD2 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-CITY1_PARTNER sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STREETCODE_PARTNER sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-J_1KFREPRE sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STCD1 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-YEAR_SIGNATURE sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-MONTH_SIGNATURE sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-DAY_SIGNATURE sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-INDEX_SIGNATURE sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STKZN sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-WT_WTSTCD sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-CITY1_PARTNER_1 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-STREETCODE_PARTNER_1 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-WT_WTSTCD_1 sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-QSREC sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-QEKAR sy-vline 
WA_IDWTS_KR01_COMPCD_PARTNER_STR-QEKAR1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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