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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CD_TR_CD_TL
*  INTO TABLE @DATA(IT_/SAPAPO/CD_TR_CD_TL2).
*--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/CD_TR_CD_TL INDEX 1 INTO DATA(WA_/SAPAPO/CD_TR_CD_TL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CD_TR_CD_TL>-MANDT = 1.
</SAPAPO/CD_TR_CD_TL>-TRNAME = 1.
</SAPAPO/CD_TR_CD_TL>-LOCNOFR = 1.
</SAPAPO/CD_TR_CD_TL>-LOCTYPEFR = 1.
</SAPAPO/CD_TR_CD_TL>-LOCNOTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CD_TR_CD_TL-LOCTYPETO, sy-vline,
  WA_/SAPAPO/CD_TR_CD_TL-LOCFR, sy-vline,
  WA_/SAPAPO/CD_TR_CD_TL-LOCTO, sy-vline,
  WA_/SAPAPO/CD_TR_CD_TL-TRTEXT, sy-vline,
  WA_/SAPAPO/CD_TR_CD_TL-PLANNER, sy-vline,
  WA_/SAPAPO/CD_TR_CD_TL-OPCAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CD_TR_CD_TL 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/CD_TR_CD_TL 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/CD_TR_CD_TL INTO WA_/SAPAPO/CD_TR_CD_TL.


*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 TSTRN, internal->external for field COMM_DURA
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CD_TR_CD_TL-COMM_DURA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CD_TR_CD_TL-COMM_DURA.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field DPL_LWH_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CD_TR_CD_TL-DPL_LWH_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CD_TR_CD_TL-DPL_LWH_UOM.
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/CD_TR_CD_TL_STR, 
MANDT TYPE STRING,
TRNAME TYPE STRING,
LOCNOFR TYPE STRING,
LOCTYPEFR TYPE STRING,
LOCNOTO TYPE STRING,
LOCTYPETO TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
TRTEXT TYPE STRING,
PLANNER TYPE STRING,
OPCAL TYPE STRING,
SHPCAL TYPE STRING,
RECCAL TYPE STRING,
COMM_DURA TYPE STRING,
CORR_FPER TYPE STRING,
PROMO_RND TYPE STRING,
SSD_PRF_ID_H TYPE STRING,
DPL_WGT_LIM TYPE STRING,
DPL_WGT_UOM TYPE STRING,
DPL_VOL_LIM TYPE STRING,
DPL_VOL_UOM TYPE STRING,
DPL_LWH_LIM TYPE STRING,
DPL_LWH_UOM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CD_TR_CD_TL_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/CD_TR_CD_TL_STR-MANDT sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-TRNAME sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCNOFR sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCTYPEFR sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCNOTO sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCTYPETO sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCFR sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-LOCTO sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-TRTEXT sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-PLANNER sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-OPCAL sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-SHPCAL sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-RECCAL sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-COMM_DURA sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-CORR_FPER sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-PROMO_RND sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-SSD_PRF_ID_H sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_WGT_LIM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_WGT_UOM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_VOL_LIM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_VOL_UOM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_LWH_LIM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-DPL_LWH_UOM sy-vline 
WA_/SAPAPO/CD_TR_CD_TL_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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