ABAP Select data from SAP table TRCON_S_LOP_VALUE_HD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRCON_S_LOP_VALUE_HD
*  INTO TABLE @DATA(IT_TRCON_S_LOP_VALUE_HD2).
*--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_TRCON_S_LOP_VALUE_HD INDEX 1 INTO DATA(WA_TRCON_S_LOP_VALUE_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRCON_S_LOP_VALUE_HD>-TC_NUMB = 1.
<TRCON_S_LOP_VALUE_HD>-LIST_GUID = 1.
<TRCON_S_LOP_VALUE_HD>-LOP_COUNT = 1.
<TRCON_S_LOP_VALUE_HD>-ITEM_GUID = 1.
<TRCON_S_LOP_VALUE_HD>-EXT_REF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRCON_S_LOP_VALUE_HD-OPT_EXEC, sy-vline,
  WA_TRCON_S_LOP_VALUE_HD-TEXT_EXIST, sy-vline,
  WA_TRCON_S_LOP_VALUE_HD-CR_NAME, sy-vline,
  WA_TRCON_S_LOP_VALUE_HD-CR_DATE, sy-vline,
  WA_TRCON_S_LOP_VALUE_HD-CR_TIME, sy-vline,
  WA_TRCON_S_LOP_VALUE_HD-CH_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRCON_S_LOP_VALUE_HD 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_TRCON_S_LOP_VALUE_HD 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_TRCON_S_LOP_VALUE_HD INTO WA_TRCON_S_LOP_VALUE_HD.


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

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

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

*Conversion exit ISOLA, internal->external for field LANGU_PR
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TRCON_S_LOP_VALUE_HD-LANGU_PR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRCON_S_LOP_VALUE_HD-LANGU_PR.
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_TRCON_S_LOP_VALUE_HD_STR, 
TC_NUMB TYPE STRING,
LIST_GUID TYPE STRING,
LOP_COUNT TYPE STRING,
ITEM_GUID TYPE STRING,
EXT_REF TYPE STRING,
OPT_EXEC TYPE STRING,
TEXT_EXIST TYPE STRING,
CR_NAME TYPE STRING,
CR_DATE TYPE STRING,
CR_TIME TYPE STRING,
CH_NAME TYPE STRING,
CH_DATE TYPE STRING,
CH_TIME TYPE STRING,
MATNR TYPE STRING,
PLANT TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
COUNTRY TYPE STRING,
QTY_MIN TYPE STRING,
QTY_MAX TYPE STRING,
UNIT TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
PLACE_HOLDER TYPE STRING,
UPDKZ TYPE STRING,
LAND1 TYPE STRING,
PLACE_HOLDER_DYN TYPE STRING,
LOP_TEXT1 TYPE STRING,
LOP_TEXT2 TYPE STRING,
LOP_TEXT3 TYPE STRING,
PLACE_HOLDER_TXT TYPE STRING,
LOP_S_TDOBJ_IT TYPE STRING,
TDNAME_PR TYPE STRING,
LANGU_PR TYPE STRING,
LOP_S_DESCR_IT TYPE STRING,
MATNR_DESCR TYPE STRING,
PLANT_DESCR TYPE STRING,
INCO1_DESCR TYPE STRING,
COUNTRY_DESCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRCON_S_LOP_VALUE_HD_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_TRCON_S_LOP_VALUE_HD_STR-TC_NUMB sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LIST_GUID sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_COUNT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-ITEM_GUID sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-EXT_REF sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-OPT_EXEC sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-TEXT_EXIST sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CR_NAME sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CR_DATE sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CR_TIME sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CH_NAME sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CH_DATE sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-CH_TIME sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-MATNR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-PLANT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-INCO1 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-INCO2 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-COUNTRY sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-QTY_MIN sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-QTY_MAX sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-UNIT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-DATE_FROM sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-DATE_TO sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-PLACE_HOLDER sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-UPDKZ sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LAND1 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-PLACE_HOLDER_DYN sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_TEXT1 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_TEXT2 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_TEXT3 sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-PLACE_HOLDER_TXT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_S_TDOBJ_IT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-TDNAME_PR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LANGU_PR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-LOP_S_DESCR_IT sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-MATNR_DESCR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-PLANT_DESCR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-INCO1_DESCR sy-vline 
WA_TRCON_S_LOP_VALUE_HD_STR-COUNTRY_DESCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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