ABAP Select data from SAP table MCEXLOG_08TR0TLP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MCEXLOG_08TR0TLP 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 MCEXLOG_08TR0TLP. 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 MCEXLOG_08TR0TLP 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_MCEXLOG_08TR0TLP TYPE STANDARD TABLE OF MCEXLOG_08TR0TLP,
      WA_MCEXLOG_08TR0TLP TYPE MCEXLOG_08TR0TLP,
      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: <MCEXLOG_08TR0TLP> TYPE MCEXLOG_08TR0TLP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MCEXLOG_08TR0TLP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MCEXLOG_08TR0TLP
  INTO TABLE IT_MCEXLOG_08TR0TLP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCEXLOG_08TR0TLP
*  INTO TABLE @DATA(IT_MCEXLOG_08TR0TLP2).
*--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_MCEXLOG_08TR0TLP INDEX 1 INTO DATA(WA_MCEXLOG_08TR0TLP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MCEXLOG_08TR0TLP ASSIGNING <MCEXLOG_08TR0TLP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCEXLOG_08TR0TLP>-TCODE = 1.
<MCEXLOG_08TR0TLP>-DATUM = 1.
<MCEXLOG_08TR0TLP>-UZEIT = 1.
<MCEXLOG_08TR0TLP>-UNAME = 1.
<MCEXLOG_08TR0TLP>-HOST = 1.

ENDLOOP.

LOOP AT IT_MCEXLOG_08TR0TLP INTO WA_MCEXLOG_08TR0TLP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCEXLOG_08TR0TLP-TKNUM, sy-vline,
  WA_MCEXLOG_08TR0TLP-TSNUM, sy-vline,
  WA_MCEXLOG_08TR0TLP-TPNUM, sy-vline,
  WA_MCEXLOG_08TR0TLP-VBELN, sy-vline,
  WA_MCEXLOG_08TR0TLP-POSNR, sy-vline,
  WA_MCEXLOG_08TR0TLP-ROCANCEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCEXLOG_08TR0TLP 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_MCEXLOG_08TR0TLP 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_MCEXLOG_08TR0TLP INTO WA_MCEXLOG_08TR0TLP.


*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 TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCEXLOG_08TR0TLP-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCEXLOG_08TR0TLP-TKNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCEXLOG_08TR0TLP-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCEXLOG_08TR0TLP-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MCEXLOG_08TR0TLP-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCEXLOG_08TR0TLP-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MCEXLOG_08TR0TLP-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCEXLOG_08TR0TLP-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MCEXLOG_08TR0TLP-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCEXLOG_08TR0TLP-VOLEH.
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_MCEXLOG_08TR0TLP_STR, 
TCODE TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
UNAME TYPE STRING,
HOST TYPE STRING,
TKNUM TYPE STRING,
TSNUM TYPE STRING,
TPNUM TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ROCANCEL TYPE STRING,
NUMSTAWDELI TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
MATNR TYPE STRING,
NTGEW TYPE STRING,
VOLEH TYPE STRING,
VOLUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCEXLOG_08TR0TLP_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_MCEXLOG_08TR0TLP_STR-TCODE sy-vline 
WA_MCEXLOG_08TR0TLP_STR-DATUM sy-vline 
WA_MCEXLOG_08TR0TLP_STR-UZEIT sy-vline 
WA_MCEXLOG_08TR0TLP_STR-UNAME sy-vline 
WA_MCEXLOG_08TR0TLP_STR-HOST sy-vline 
WA_MCEXLOG_08TR0TLP_STR-TKNUM sy-vline 
WA_MCEXLOG_08TR0TLP_STR-TSNUM sy-vline 
WA_MCEXLOG_08TR0TLP_STR-TPNUM sy-vline 
WA_MCEXLOG_08TR0TLP_STR-VBELN sy-vline 
WA_MCEXLOG_08TR0TLP_STR-POSNR sy-vline 
WA_MCEXLOG_08TR0TLP_STR-ROCANCEL sy-vline 
WA_MCEXLOG_08TR0TLP_STR-NUMSTAWDELI sy-vline 
WA_MCEXLOG_08TR0TLP_STR-BRGEW sy-vline 
WA_MCEXLOG_08TR0TLP_STR-GEWEI sy-vline 
WA_MCEXLOG_08TR0TLP_STR-MATNR sy-vline 
WA_MCEXLOG_08TR0TLP_STR-NTGEW sy-vline 
WA_MCEXLOG_08TR0TLP_STR-VOLEH sy-vline 
WA_MCEXLOG_08TR0TLP_STR-VOLUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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