ABAP Select data from SAP table MC08TR1TK into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC08TR1TK 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 MC08TR1TK. 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 MC08TR1TK 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_MC08TR1TK TYPE STANDARD TABLE OF MC08TR1TK,
      WA_MC08TR1TK TYPE MC08TR1TK,
      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: <MC08TR1TK> TYPE MC08TR1TK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC08TR1TK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC08TR1TK
  INTO TABLE IT_MC08TR1TK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC08TR1TK
*  INTO TABLE @DATA(IT_MC08TR1TK2).
*--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_MC08TR1TK INDEX 1 INTO DATA(WA_MC08TR1TK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC08TR1TK ASSIGNING <MC08TR1TK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC08TR1TK>-ABFER = 1.
<MC08TR1TK>-ABWST = 1.
<MC08TR1TK>-BFART = 1.
<MC08TR1TK>-DALBG = 1.
<MC08TR1TK>-DALEN = 1.

ENDLOOP.

LOOP AT IT_MC08TR1TK INTO WA_MC08TR1TK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC08TR1TK-DAREG, sy-vline,
  WA_MC08TR1TK-DATBG, sy-vline,
  WA_MC08TR1TK-DATEN, sy-vline,
  WA_MC08TR1TK-DISTZ, sy-vline,
  WA_MC08TR1TK-DPABF, sy-vline,
  WA_MC08TR1TK-DPLBG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC08TR1TK 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_MC08TR1TK 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_MC08TR1TK INTO WA_MC08TR1TK.


*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 CUNIT, internal->external for field DTMEG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-DTMEG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-DTMEG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DTMEV
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-DTMEV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-DTMEV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field FAHZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-FAHZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-FAHZTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field FAHZTDA
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-FAHZTDA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-FAHZTDA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field GESZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-GESZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-GESZTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field GESZTDA
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-GESZTDA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-GESZTDA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEDST
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-MEDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-MEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TDLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC08TR1TK-TDLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC08TR1TK-TDLNR.
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_MC08TR1TK_STR, 
ABFER TYPE STRING,
ABWST TYPE STRING,
BFART TYPE STRING,
DALBG TYPE STRING,
DALEN TYPE STRING,
DAREG TYPE STRING,
DATBG TYPE STRING,
DATEN TYPE STRING,
DISTZ TYPE STRING,
DPABF TYPE STRING,
DPLBG TYPE STRING,
DPLEN TYPE STRING,
DPREG TYPE STRING,
DPTBG TYPE STRING,
DPTEN TYPE STRING,
DTABF TYPE STRING,
DTDIS TYPE STRING,
DTMEG TYPE STRING,
DTMEV TYPE STRING,
FAHZTD TYPE STRING,
FAHZTDA TYPE STRING,
GESZTD TYPE STRING,
GESZTDA TYPE STRING,
KAPAGEW TYPE STRING,
KAPAVOL TYPE STRING,
LAUFK TYPE STRING,
MEDST TYPE STRING,
PARVW TYPE STRING,
ROUTE TYPE STRING,
SDABW TYPE STRING,
SHTYP TYPE STRING,
TDLNR TYPE STRING,
TPLST TYPE STRING,
VSART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC08TR1TK_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_MC08TR1TK_STR-ABFER sy-vline 
WA_MC08TR1TK_STR-ABWST sy-vline 
WA_MC08TR1TK_STR-BFART sy-vline 
WA_MC08TR1TK_STR-DALBG sy-vline 
WA_MC08TR1TK_STR-DALEN sy-vline 
WA_MC08TR1TK_STR-DAREG sy-vline 
WA_MC08TR1TK_STR-DATBG sy-vline 
WA_MC08TR1TK_STR-DATEN sy-vline 
WA_MC08TR1TK_STR-DISTZ sy-vline 
WA_MC08TR1TK_STR-DPABF sy-vline 
WA_MC08TR1TK_STR-DPLBG sy-vline 
WA_MC08TR1TK_STR-DPLEN sy-vline 
WA_MC08TR1TK_STR-DPREG sy-vline 
WA_MC08TR1TK_STR-DPTBG sy-vline 
WA_MC08TR1TK_STR-DPTEN sy-vline 
WA_MC08TR1TK_STR-DTABF sy-vline 
WA_MC08TR1TK_STR-DTDIS sy-vline 
WA_MC08TR1TK_STR-DTMEG sy-vline 
WA_MC08TR1TK_STR-DTMEV sy-vline 
WA_MC08TR1TK_STR-FAHZTD sy-vline 
WA_MC08TR1TK_STR-FAHZTDA sy-vline 
WA_MC08TR1TK_STR-GESZTD sy-vline 
WA_MC08TR1TK_STR-GESZTDA sy-vline 
WA_MC08TR1TK_STR-KAPAGEW sy-vline 
WA_MC08TR1TK_STR-KAPAVOL sy-vline 
WA_MC08TR1TK_STR-LAUFK sy-vline 
WA_MC08TR1TK_STR-MEDST sy-vline 
WA_MC08TR1TK_STR-PARVW sy-vline 
WA_MC08TR1TK_STR-ROUTE sy-vline 
WA_MC08TR1TK_STR-SDABW sy-vline 
WA_MC08TR1TK_STR-SHTYP sy-vline 
WA_MC08TR1TK_STR-TDLNR sy-vline 
WA_MC08TR1TK_STR-TPLST sy-vline 
WA_MC08TR1TK_STR-VSART sy-vline      INTO ld_text SEPARATED BY SPACE.

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