ABAP Select data from SAP table TRNSM_DIA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRNSM_DIA
*  INTO TABLE @DATA(IT_TRNSM_DIA2).
*--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_TRNSM_DIA INDEX 1 INTO DATA(WA_TRNSM_DIA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRNSM_DIA>-MANDT = 1.
<TRNSM_DIA>-TRMNO_INT = 1.
<TRNSM_DIA>-TRMNO_EXT = 1.
<TRNSM_DIA>-TRMNO_EXT_OLD = 1.
<TRNSM_DIA>-TRMDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRNSM_DIA-TRMTIME, sy-vline,
  WA_TRNSM_DIA-DIRECT, sy-vline,
  WA_TRNSM_DIA-PARNO, sy-vline,
  WA_TRNSM_DIA-PARTYP, sy-vline,
  WA_TRNSM_DIA-PARFCT, sy-vline,
  WA_TRNSM_DIA-MESTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRNSM_DIA 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_TRNSM_DIA 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_TRNSM_DIA INTO WA_TRNSM_DIA.


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

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

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

*Conversion exit EDIPV, internal->external for field PARFCT
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_TRNSM_DIA-PARFCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRNSM_DIA-PARFCT.
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_TRNSM_DIA_STR, 
MANDT TYPE STRING,
TRMNO_INT TYPE STRING,
TRMNO_EXT TYPE STRING,
TRMNO_EXT_OLD TYPE STRING,
TRMDATE TYPE STRING,
TRMTIME TYPE STRING,
DIRECT TYPE STRING,
PARNO TYPE STRING,
PARTYP TYPE STRING,
PARFCT TYPE STRING,
MESTYP TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
TEST TYPE STRING,
TIMESTAMP TYPE STRING,
DOCNO TYPE STRING,
DAT TYPE STRING,
TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRNSM_DIA_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_TRNSM_DIA_STR-MANDT sy-vline 
WA_TRNSM_DIA_STR-TRMNO_INT sy-vline 
WA_TRNSM_DIA_STR-TRMNO_EXT sy-vline 
WA_TRNSM_DIA_STR-TRMNO_EXT_OLD sy-vline 
WA_TRNSM_DIA_STR-TRMDATE sy-vline 
WA_TRNSM_DIA_STR-TRMTIME sy-vline 
WA_TRNSM_DIA_STR-DIRECT sy-vline 
WA_TRNSM_DIA_STR-PARNO sy-vline 
WA_TRNSM_DIA_STR-PARTYP sy-vline 
WA_TRNSM_DIA_STR-PARFCT sy-vline 
WA_TRNSM_DIA_STR-MESTYP sy-vline 
WA_TRNSM_DIA_STR-MESCOD sy-vline 
WA_TRNSM_DIA_STR-MESFCT sy-vline 
WA_TRNSM_DIA_STR-TEST sy-vline 
WA_TRNSM_DIA_STR-TIMESTAMP sy-vline 
WA_TRNSM_DIA_STR-DOCNO sy-vline 
WA_TRNSM_DIA_STR-DAT sy-vline 
WA_TRNSM_DIA_STR-TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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