ABAP Select data from SAP table TMC5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TMC5 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 TMC5. 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 TMC5 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_TMC5 TYPE STANDARD TABLE OF TMC5,
      WA_TMC5 TYPE TMC5,
      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: <TMC5> TYPE TMC5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TMC5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TMC5
  INTO TABLE IT_TMC5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TMC5
*  INTO TABLE @DATA(IT_TMC52).
*--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_TMC5 INDEX 1 INTO DATA(WA_TMC52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TMC5 ASSIGNING <TMC5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TMC5>-ZEITP = 1.
<TMC5>-KAPPL = 1.
<TMC5>-EITYP = 1.
<TMC5>-DATST = 1.
<TMC5>-DATFN = 1.

ENDLOOP.

LOOP AT IT_TMC5 INTO WA_TMC5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TMC5-FGROUP, sy-vline,
  WA_TMC5-STAFO, sy-vline,
  WA_TMC5-FBSNAME, sy-vline,
  WA_TMC5-MANKZ, sy-vline,
  WA_TMC5-IDOCFBS, sy-vline,
  WA_TMC5-GENKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TMC5 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_TMC5 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_TMC5 INTO WA_TMC5.


*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 STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TMC5-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TMC5-STAFO.
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_TMC5_STR, 
ZEITP TYPE STRING,
KAPPL TYPE STRING,
EITYP TYPE STRING,
DATST TYPE STRING,
DATFN TYPE STRING,
FGROUP TYPE STRING,
STAFO TYPE STRING,
FBSNAME TYPE STRING,
MANKZ TYPE STRING,
IDOCFBS TYPE STRING,
GENKZ TYPE STRING,
GENDATE TYPE STRING,
GENTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TMC5_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_TMC5_STR-ZEITP sy-vline 
WA_TMC5_STR-KAPPL sy-vline 
WA_TMC5_STR-EITYP sy-vline 
WA_TMC5_STR-DATST sy-vline 
WA_TMC5_STR-DATFN sy-vline 
WA_TMC5_STR-FGROUP sy-vline 
WA_TMC5_STR-STAFO sy-vline 
WA_TMC5_STR-FBSNAME sy-vline 
WA_TMC5_STR-MANKZ sy-vline 
WA_TMC5_STR-IDOCFBS sy-vline 
WA_TMC5_STR-GENKZ sy-vline 
WA_TMC5_STR-GENDATE sy-vline 
WA_TMC5_STR-GENTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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