ABAP Select data from SAP table TRCON_SD_IT_GEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TRCON_SD_IT_GEN 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_SD_IT_GEN. 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_SD_IT_GEN 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_SD_IT_GEN TYPE STANDARD TABLE OF TRCON_SD_IT_GEN,
      WA_TRCON_SD_IT_GEN TYPE TRCON_SD_IT_GEN,
      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_SD_IT_GEN> TYPE TRCON_SD_IT_GEN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRCON_SD_IT_GEN
*  INTO TABLE @DATA(IT_TRCON_SD_IT_GEN2).
*--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_SD_IT_GEN INDEX 1 INTO DATA(WA_TRCON_SD_IT_GEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRCON_SD_IT_GEN>-TC_NUMB = 1.
<TRCON_SD_IT_GEN>-TPOSN = 1.
<TRCON_SD_IT_GEN>-TPOSN_SUB = 1.
<TRCON_SD_IT_GEN>-KWMENG = 1.
<TRCON_SD_IT_GEN>-VRKME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRCON_SD_IT_GEN-UMVKZ, sy-vline,
  WA_TRCON_SD_IT_GEN-UMVKN, sy-vline,
  WA_TRCON_SD_IT_GEN-BASIS_MEINS, sy-vline,
  WA_TRCON_SD_IT_GEN-NETPR, sy-vline,
  WA_TRCON_SD_IT_GEN-UEBTK, sy-vline,
  WA_TRCON_SD_IT_GEN-UEBTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRCON_SD_IT_GEN 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_SD_IT_GEN 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_SD_IT_GEN INTO WA_TRCON_SD_IT_GEN.


*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_SD_IT_GEN-TC_NUMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRCON_SD_IT_GEN-TC_NUMB.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRCON_SD_IT_GEN-KBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRCON_SD_IT_GEN-KBELN.
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_SD_IT_GEN_STR, 
TC_NUMB TYPE STRING,
TPOSN TYPE STRING,
TPOSN_SUB TYPE STRING,
KWMENG TYPE STRING,
VRKME TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
BASIS_MEINS TYPE STRING,
NETPR TYPE STRING,
UEBTK TYPE STRING,
UEBTO TYPE STRING,
UNTTO TYPE STRING,
ABGRU TYPE STRING,
PRODH TYPE STRING,
CUST_MAT TYPE STRING,
NET_WT TYPE STRING,
GROSS_WT TYPE STRING,
UNIT_OF_WT TYPE STRING,
VOLUME TYPE STRING,
VOLUMUNIT TYPE STRING,
TAXM1 TYPE STRING,
TAXM2 TYPE STRING,
TAXM3 TYPE STRING,
TAXM4 TYPE STRING,
TAXM5 TYPE STRING,
TAXM6 TYPE STRING,
TAXM7 TYPE STRING,
TAXM8 TYPE STRING,
TAXM9 TYPE STRING,
MAT_GRP1 TYPE STRING,
MAT_GRP2 TYPE STRING,
MAT_GRP3 TYPE STRING,
MAT_GRP4 TYPE STRING,
MAT_GRP5 TYPE STRING,
FAKSP TYPE STRING,
ANTLF TYPE STRING,
KZTLF TYPE STRING,
TC_CURRENCY_SD TYPE STRING,
NET_VALUE TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
BPUMZ TYPE STRING,
BPUMN TYPE STRING,
ETTYP TYPE STRING,
KBELN TYPE STRING,
KBELP TYPE STRING,
VKNUM TYPE STRING,
KPOSN TYPE STRING,
VKPNE TYPE STRING,
EVPRS TYPE STRING,
INCOTERMS1 TYPE STRING,
INCOTERMS2 TYPE STRING,
INCOTERMSV TYPE STRING,
INCOTERMS2L TYPE STRING,
INCOTERMS3L TYPE STRING,
EDATU_VBAK TYPE STRING,
PRGRS_VBAK TYPE STRING,
ZTERM TYPE STRING,
VALDTD TYPE STRING,
ZLSCH TYPE STRING,
KZAZU TYPE STRING,
KETDAT TYPE STRING,
KPRGBZ TYPE STRING,
BRT_VALUE TYPE STRING,
MWSBP TYPE STRING,
MWSKZ TYPE STRING,
NET_VALUE_IN_TC_CURR TYPE STRING,
BRT_VALUE_IN_TC_CURR TYPE STRING,
MWSBP_IN_TC_CURR TYPE STRING,
NETPR_IN_TC_CURR TYPE STRING,
TC_CURRENCY TYPE STRING,
TXTID_TITLE TYPE STRING,
TXTID_NEGOTIATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRCON_SD_IT_GEN_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_SD_IT_GEN_STR-TC_NUMB sy-vline 
WA_TRCON_SD_IT_GEN_STR-TPOSN sy-vline 
WA_TRCON_SD_IT_GEN_STR-TPOSN_SUB sy-vline 
WA_TRCON_SD_IT_GEN_STR-KWMENG sy-vline 
WA_TRCON_SD_IT_GEN_STR-VRKME sy-vline 
WA_TRCON_SD_IT_GEN_STR-UMVKZ sy-vline 
WA_TRCON_SD_IT_GEN_STR-UMVKN sy-vline 
WA_TRCON_SD_IT_GEN_STR-BASIS_MEINS sy-vline 
WA_TRCON_SD_IT_GEN_STR-NETPR sy-vline 
WA_TRCON_SD_IT_GEN_STR-UEBTK sy-vline 
WA_TRCON_SD_IT_GEN_STR-UEBTO sy-vline 
WA_TRCON_SD_IT_GEN_STR-UNTTO sy-vline 
WA_TRCON_SD_IT_GEN_STR-ABGRU sy-vline 
WA_TRCON_SD_IT_GEN_STR-PRODH sy-vline 
WA_TRCON_SD_IT_GEN_STR-CUST_MAT sy-vline 
WA_TRCON_SD_IT_GEN_STR-NET_WT sy-vline 
WA_TRCON_SD_IT_GEN_STR-GROSS_WT sy-vline 
WA_TRCON_SD_IT_GEN_STR-UNIT_OF_WT sy-vline 
WA_TRCON_SD_IT_GEN_STR-VOLUME sy-vline 
WA_TRCON_SD_IT_GEN_STR-VOLUMUNIT sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM1 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM2 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM3 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM4 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM5 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM6 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM7 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM8 sy-vline 
WA_TRCON_SD_IT_GEN_STR-TAXM9 sy-vline 
WA_TRCON_SD_IT_GEN_STR-MAT_GRP1 sy-vline 
WA_TRCON_SD_IT_GEN_STR-MAT_GRP2 sy-vline 
WA_TRCON_SD_IT_GEN_STR-MAT_GRP3 sy-vline 
WA_TRCON_SD_IT_GEN_STR-MAT_GRP4 sy-vline 
WA_TRCON_SD_IT_GEN_STR-MAT_GRP5 sy-vline 
WA_TRCON_SD_IT_GEN_STR-FAKSP sy-vline 
WA_TRCON_SD_IT_GEN_STR-ANTLF sy-vline 
WA_TRCON_SD_IT_GEN_STR-KZTLF sy-vline 
WA_TRCON_SD_IT_GEN_STR-TC_CURRENCY_SD sy-vline 
WA_TRCON_SD_IT_GEN_STR-NET_VALUE sy-vline 
WA_TRCON_SD_IT_GEN_STR-KPEIN sy-vline 
WA_TRCON_SD_IT_GEN_STR-KMEIN sy-vline 
WA_TRCON_SD_IT_GEN_STR-BPUMZ sy-vline 
WA_TRCON_SD_IT_GEN_STR-BPUMN sy-vline 
WA_TRCON_SD_IT_GEN_STR-ETTYP sy-vline 
WA_TRCON_SD_IT_GEN_STR-KBELN sy-vline 
WA_TRCON_SD_IT_GEN_STR-KBELP sy-vline 
WA_TRCON_SD_IT_GEN_STR-VKNUM sy-vline 
WA_TRCON_SD_IT_GEN_STR-KPOSN sy-vline 
WA_TRCON_SD_IT_GEN_STR-VKPNE sy-vline 
WA_TRCON_SD_IT_GEN_STR-EVPRS sy-vline 
WA_TRCON_SD_IT_GEN_STR-INCOTERMS1 sy-vline 
WA_TRCON_SD_IT_GEN_STR-INCOTERMS2 sy-vline 
WA_TRCON_SD_IT_GEN_STR-INCOTERMSV sy-vline 
WA_TRCON_SD_IT_GEN_STR-INCOTERMS2L sy-vline 
WA_TRCON_SD_IT_GEN_STR-INCOTERMS3L sy-vline 
WA_TRCON_SD_IT_GEN_STR-EDATU_VBAK sy-vline 
WA_TRCON_SD_IT_GEN_STR-PRGRS_VBAK sy-vline 
WA_TRCON_SD_IT_GEN_STR-ZTERM sy-vline 
WA_TRCON_SD_IT_GEN_STR-VALDTD sy-vline 
WA_TRCON_SD_IT_GEN_STR-ZLSCH sy-vline 
WA_TRCON_SD_IT_GEN_STR-KZAZU sy-vline 
WA_TRCON_SD_IT_GEN_STR-KETDAT sy-vline 
WA_TRCON_SD_IT_GEN_STR-KPRGBZ sy-vline 
WA_TRCON_SD_IT_GEN_STR-BRT_VALUE sy-vline 
WA_TRCON_SD_IT_GEN_STR-MWSBP sy-vline 
WA_TRCON_SD_IT_GEN_STR-MWSKZ sy-vline 
WA_TRCON_SD_IT_GEN_STR-NET_VALUE_IN_TC_CURR sy-vline 
WA_TRCON_SD_IT_GEN_STR-BRT_VALUE_IN_TC_CURR sy-vline 
WA_TRCON_SD_IT_GEN_STR-MWSBP_IN_TC_CURR sy-vline 
WA_TRCON_SD_IT_GEN_STR-NETPR_IN_TC_CURR sy-vline 
WA_TRCON_SD_IT_GEN_STR-TC_CURRENCY sy-vline 
WA_TRCON_SD_IT_GEN_STR-TXTID_TITLE sy-vline 
WA_TRCON_SD_IT_GEN_STR-TXTID_NEGOTIATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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