ABAP Select data from SAP table /SAPAPO/CTM_TRANSPORT_IO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/CTM_TRANSPORT_IO 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 /SAPAPO/CTM_TRANSPORT_IO. 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 /SAPAPO/CTM_TRANSPORT_IO 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_/SAPAPO/CTM_TRANSPORT_IO TYPE STANDARD TABLE OF /SAPAPO/CTM_TRANSPORT_IO,
      WA_/SAPAPO/CTM_TRANSPORT_IO TYPE /SAPAPO/CTM_TRANSPORT_IO,
      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: </SAPAPO/CTM_TRANSPORT_IO> TYPE /SAPAPO/CTM_TRANSPORT_IO.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/CTM_TRANSPORT_IO
  INTO TABLE IT_/SAPAPO/CTM_TRANSPORT_IO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CTM_TRANSPORT_IO
*  INTO TABLE @DATA(IT_/SAPAPO/CTM_TRANSPORT_IO2).
*--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_/SAPAPO/CTM_TRANSPORT_IO INDEX 1 INTO DATA(WA_/SAPAPO/CTM_TRANSPORT_IO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/CTM_TRANSPORT_IO ASSIGNING </SAPAPO/CTM_TRANSPORT_IO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CTM_TRANSPORT_IO>-TRPID = 1.
</SAPAPO/CTM_TRANSPORT_IO>-LOCFR = 1.
</SAPAPO/CTM_TRANSPORT_IO>-LOCTO = 1.
</SAPAPO/CTM_TRANSPORT_IO>-MATID = 1.
</SAPAPO/CTM_TRANSPORT_IO>-TTYPE = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/CTM_TRANSPORT_IO INTO WA_/SAPAPO/CTM_TRANSPORT_IO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CTM_TRANSPORT_IO-VALFR, sy-vline,
  WA_/SAPAPO/CTM_TRANSPORT_IO-VALTO, sy-vline,
  WA_/SAPAPO/CTM_TRANSPORT_IO-GRPRT, sy-vline,
  WA_/SAPAPO/CTM_TRANSPORT_IO-NOQTA, sy-vline,
  WA_/SAPAPO/CTM_TRANSPORT_IO-QUOTA, sy-vline,
  WA_/SAPAPO/CTM_TRANSPORT_IO-SPRIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CTM_TRANSPORT_IO 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_/SAPAPO/CTM_TRANSPORT_IO 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_/SAPAPO/CTM_TRANSPORT_IO INTO WA_/SAPAPO/CTM_TRANSPORT_IO.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CTM_TRANSPORT_IO-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CTM_TRANSPORT_IO-MATNR.
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_/SAPAPO/CTM_TRANSPORT_IO_STR, 
TRPID TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
MATID TYPE STRING,
TTYPE TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
GRPRT TYPE STRING,
NOQTA TYPE STRING,
QUOTA TYPE STRING,
SPRIO TYPE STRING,
TPRIO TYPE STRING,
DURAT TYPE STRING,
TRCAL TYPE STRING,
BSTMI TYPE STRING,
BSTMA TYPE STRING,
BSTRF TYPE STRING,
INQTY TYPE STRING,
SUBCO TYPE STRING,
SRCTY TYPE STRING,
PLIFZHORZ TYPE STRING,
QTASPLT TYPE STRING,
RESUID TYPE STRING,
CONSU TYPE STRING,
LOCNOFR TYPE STRING,
LOCNOTO TYPE STRING,
MATNR TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
NAME TYPE STRING,
PLIFZHORZ_DATE TYPE STRING,
PLIFZHORZ_TIME TYPE STRING,
RESNAME TYPE STRING,
MSGKEY TYPE STRING,
MSGTY TYPE STRING,
AGGOBJ TYPE STRING,
OBJID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CTM_TRANSPORT_IO_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_/SAPAPO/CTM_TRANSPORT_IO_STR-TRPID sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-LOCFR sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-LOCTO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-MATID sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-TTYPE sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-VALFR sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-VALTO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-GRPRT sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-NOQTA sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-QUOTA sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-SPRIO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-TPRIO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-DURAT sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-TRCAL sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-BSTMI sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-BSTMA sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-BSTRF sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-INQTY sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-SUBCO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-SRCTY sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-PLIFZHORZ sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-QTASPLT sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-RESUID sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-CONSU sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-LOCNOFR sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-LOCNOTO sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-MATNR sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-STARTDATE sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-STARTTIME sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-ENDDATE sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-ENDTIME sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-NAME sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-PLIFZHORZ_DATE sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-PLIFZHORZ_TIME sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-RESNAME sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-MSGKEY sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-MSGTY sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-AGGOBJ sy-vline 
WA_/SAPAPO/CTM_TRANSPORT_IO_STR-OBJID sy-vline      INTO ld_text SEPARATED BY SPACE.

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