ABAP Select data from SAP table WB2B_CMM_MTM_EXTR_TC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WB2B_CMM_MTM_EXTR_TC 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 WB2B_CMM_MTM_EXTR_TC. 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 WB2B_CMM_MTM_EXTR_TC 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_WB2B_CMM_MTM_EXTR_TC TYPE STANDARD TABLE OF WB2B_CMM_MTM_EXTR_TC,
      WA_WB2B_CMM_MTM_EXTR_TC TYPE WB2B_CMM_MTM_EXTR_TC,
      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: <WB2B_CMM_MTM_EXTR_TC> TYPE WB2B_CMM_MTM_EXTR_TC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2B_CMM_MTM_EXTR_TC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2B_CMM_MTM_EXTR_TC
  INTO TABLE IT_WB2B_CMM_MTM_EXTR_TC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2B_CMM_MTM_EXTR_TC
*  INTO TABLE @DATA(IT_WB2B_CMM_MTM_EXTR_TC2).
*--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_WB2B_CMM_MTM_EXTR_TC INDEX 1 INTO DATA(WA_WB2B_CMM_MTM_EXTR_TC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2B_CMM_MTM_EXTR_TC ASSIGNING <WB2B_CMM_MTM_EXTR_TC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2B_CMM_MTM_EXTR_TC>-ROCANCEL = 1.
<WB2B_CMM_MTM_EXTR_TC>-TKONN = 1.
<WB2B_CMM_MTM_EXTR_TC>-TPOSN = 1.
<WB2B_CMM_MTM_EXTR_TC>-WAERK = 1.
<WB2B_CMM_MTM_EXTR_TC>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_WB2B_CMM_MTM_EXTR_TC INTO WA_WB2B_CMM_MTM_EXTR_TC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2B_CMM_MTM_EXTR_TC-KUNNR, sy-vline,
  WA_WB2B_CMM_MTM_EXTR_TC-LIFNR, sy-vline,
  WA_WB2B_CMM_MTM_EXTR_TC-VKORG, sy-vline,
  WA_WB2B_CMM_MTM_EXTR_TC-VTWEG, sy-vline,
  WA_WB2B_CMM_MTM_EXTR_TC-EKORG, sy-vline,
  WA_WB2B_CMM_MTM_EXTR_TC-ERDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2B_CMM_MTM_EXTR_TC 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_WB2B_CMM_MTM_EXTR_TC 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_WB2B_CMM_MTM_EXTR_TC INTO WA_WB2B_CMM_MTM_EXTR_TC.


*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 ALPHA, internal->external for field TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TKONN_ROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-TKONN_ROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-TKONN_ROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_VF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-VBELN_VF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-VBELN_VF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LAGME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-LAGME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-LAGME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMMODITY_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-COMMODITY_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-COMMODITY_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMMODITY_RF_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_CMM_MTM_EXTR_TC-COMMODITY_RF_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_CMM_MTM_EXTR_TC-COMMODITY_RF_UOM.
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_WB2B_CMM_MTM_EXTR_TC_STR, 
ROCANCEL TYPE STRING,
TKONN TYPE STRING,
TPOSN TYPE STRING,
WAERK TYPE STRING,
BUKRS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
EKORG TYPE STRING,
ERDAT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
SPART TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
KWERT TYPE STRING,
KWERT_DISC TYPE STRING,
KWERT_DOC TYPE STRING,
DATE_DISCOUNTING TYPE STRING,
DATE_PYMNT TYPE STRING,
CGROUP TYPE STRING,
COMMODITY TYPE STRING,
STWAE TYPE STRING,
TKONN_EX TYPE STRING,
TKONN_ROOT TYPE STRING,
TPOSN_ROOT TYPE STRING,
TKONN_EX_ROOT TYPE STRING,
VBELN_VF TYPE STRING,
POSNR_VF TYPE STRING,
MBLNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
MGAME TYPE STRING,
VRKME TYPE STRING,
MGLME TYPE STRING,
LAGME TYPE STRING,
MGAME_ADJ TYPE STRING,
MGLME_ADJ TYPE STRING,
COMMODITY_QUAN TYPE STRING,
COMMODITY_ADJ TYPE STRING,
COMMODITY_UOM TYPE STRING,
COMMODITY_RF_UOM TYPE STRING,
S_GENEXT_MASK TYPE STRING,
TPOSN TYPE STRING,
KSCHL TYPE STRING,
COMMODITY TYPE STRING,
VBELN_VF TYPE STRING,
POSNR_VF TYPE STRING,
MBLNR TYPE STRING,
BUZEI TYPE STRING,
VGABE TYPE STRING,
VBTYP_N TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2B_CMM_MTM_EXTR_TC_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_WB2B_CMM_MTM_EXTR_TC_STR-ROCANCEL sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TKONN sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TPOSN sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-WAERK sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-BUKRS sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KUNNR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-LIFNR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VKORG sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VTWEG sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-EKORG sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-ERDAT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MATNR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-WERKS sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-SPART sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KAPPL sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KSCHL sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KWERT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KWERT_DISC sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KWERT_DOC sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-DATE_DISCOUNTING sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-DATE_PYMNT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-CGROUP sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-STWAE sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TKONN_EX sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TKONN_ROOT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TPOSN_ROOT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TKONN_EX_ROOT sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VBELN_VF sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-POSNR_VF sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MBLNR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-GJAHR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-BUZEI sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MGAME sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VRKME sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MGLME sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-LAGME sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MGAME_ADJ sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MGLME_ADJ sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY_QUAN sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY_ADJ sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY_UOM sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY_RF_UOM sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-S_GENEXT_MASK sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-TPOSN sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-KSCHL sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-COMMODITY sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VBELN_VF sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-POSNR_VF sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-MBLNR sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-BUZEI sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VGABE sy-vline 
WA_WB2B_CMM_MTM_EXTR_TC_STR-VBTYP_N sy-vline      INTO ld_text SEPARATED BY SPACE.

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