ABAP Select data from SAP table /SAPPCE/TDPC01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPPCE/TDPC01 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 /SAPPCE/TDPC01. 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 /SAPPCE/TDPC01 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_/SAPPCE/TDPC01 TYPE STANDARD TABLE OF /SAPPCE/TDPC01,
      WA_/SAPPCE/TDPC01 TYPE /SAPPCE/TDPC01,
      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: </SAPPCE/TDPC01> TYPE /SAPPCE/TDPC01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPPCE/TDPC01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPPCE/TDPC01
  INTO TABLE IT_/SAPPCE/TDPC01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPCE/TDPC01
*  INTO TABLE @DATA(IT_/SAPPCE/TDPC012).
*--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_/SAPPCE/TDPC01 INDEX 1 INTO DATA(WA_/SAPPCE/TDPC012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPPCE/TDPC01 ASSIGNING </SAPPCE/TDPC01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPCE/TDPC01>-MANDT = 1.
</SAPPCE/TDPC01>-BUKRS = 1.
</SAPPCE/TDPC01>-DPCNR = 1.
</SAPPCE/TDPC01>-OBJNR = 1.
</SAPPCE/TDPC01>-DPCTP = 1.

ENDLOOP.

LOOP AT IT_/SAPPCE/TDPC01 INTO WA_/SAPPCE/TDPC01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPCE/TDPC01-KOART, sy-vline,
  WA_/SAPPCE/TDPC01-EBELN, sy-vline,
  WA_/SAPPCE/TDPC01-EBELP, sy-vline,
  WA_/SAPPCE/TDPC01-VBELN, sy-vline,
  WA_/SAPPCE/TDPC01-POSNR, sy-vline,
  WA_/SAPPCE/TDPC01-DPCKT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPCE/TDPC01 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_/SAPPCE/TDPC01 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_/SAPPCE/TDPC01 INTO WA_/SAPPCE/TDPC01.


*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 DPCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-DPCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-DPCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field NETPR
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/TDPC01-NETPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/TDPC01-NETPR.
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_/SAPPCE/TDPC01_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
DPCNR TYPE STRING,
OBJNR TYPE STRING,
DPCTP TYPE STRING,
KOART TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
DPCKT TYPE STRING,
DPENR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
DDATC TYPE STRING,
DDATF TYPE STRING,
TTERM TYPE STRING,
TBD1T TYPE STRING,
TBD2T TYPE STRING,
TBD3T TYPE STRING,
TBD1P TYPE STRING,
TBD2P TYPE STRING,
STERM TYPE STRING,
SBD1T TYPE STRING,
SBD2T TYPE STRING,
SBD3T TYPE STRING,
SBD1P TYPE STRING,
SBD2P TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
TMWKZ TYPE STRING,
MWSKZ TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
CHDAT TYPE STRING,
CHNAM TYPE STRING,
CSTAT TYPE STRING,
CLKMD TYPE STRING,
CLKPO TYPE STRING,
ACCTASSCAT TYPE STRING,
TAXJURCODE TYPE STRING,
INFO_CLRNG_DP TYPE STRING,
IND_LOGISTICS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPCE/TDPC01_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_/SAPPCE/TDPC01_STR-MANDT sy-vline 
WA_/SAPPCE/TDPC01_STR-BUKRS sy-vline 
WA_/SAPPCE/TDPC01_STR-DPCNR sy-vline 
WA_/SAPPCE/TDPC01_STR-OBJNR sy-vline 
WA_/SAPPCE/TDPC01_STR-DPCTP sy-vline 
WA_/SAPPCE/TDPC01_STR-KOART sy-vline 
WA_/SAPPCE/TDPC01_STR-EBELN sy-vline 
WA_/SAPPCE/TDPC01_STR-EBELP sy-vline 
WA_/SAPPCE/TDPC01_STR-VBELN sy-vline 
WA_/SAPPCE/TDPC01_STR-POSNR sy-vline 
WA_/SAPPCE/TDPC01_STR-DPCKT sy-vline 
WA_/SAPPCE/TDPC01_STR-DPENR sy-vline 
WA_/SAPPCE/TDPC01_STR-LIFNR sy-vline 
WA_/SAPPCE/TDPC01_STR-KUNNR sy-vline 
WA_/SAPPCE/TDPC01_STR-DDATC sy-vline 
WA_/SAPPCE/TDPC01_STR-DDATF sy-vline 
WA_/SAPPCE/TDPC01_STR-TTERM sy-vline 
WA_/SAPPCE/TDPC01_STR-TBD1T sy-vline 
WA_/SAPPCE/TDPC01_STR-TBD2T sy-vline 
WA_/SAPPCE/TDPC01_STR-TBD3T sy-vline 
WA_/SAPPCE/TDPC01_STR-TBD1P sy-vline 
WA_/SAPPCE/TDPC01_STR-TBD2P sy-vline 
WA_/SAPPCE/TDPC01_STR-STERM sy-vline 
WA_/SAPPCE/TDPC01_STR-SBD1T sy-vline 
WA_/SAPPCE/TDPC01_STR-SBD2T sy-vline 
WA_/SAPPCE/TDPC01_STR-SBD3T sy-vline 
WA_/SAPPCE/TDPC01_STR-SBD1P sy-vline 
WA_/SAPPCE/TDPC01_STR-SBD2P sy-vline 
WA_/SAPPCE/TDPC01_STR-NETPR sy-vline 
WA_/SAPPCE/TDPC01_STR-WAERS sy-vline 
WA_/SAPPCE/TDPC01_STR-TMWKZ sy-vline 
WA_/SAPPCE/TDPC01_STR-MWSKZ sy-vline 
WA_/SAPPCE/TDPC01_STR-CRDAT sy-vline 
WA_/SAPPCE/TDPC01_STR-CRNAM sy-vline 
WA_/SAPPCE/TDPC01_STR-CHDAT sy-vline 
WA_/SAPPCE/TDPC01_STR-CHNAM sy-vline 
WA_/SAPPCE/TDPC01_STR-CSTAT sy-vline 
WA_/SAPPCE/TDPC01_STR-CLKMD sy-vline 
WA_/SAPPCE/TDPC01_STR-CLKPO sy-vline 
WA_/SAPPCE/TDPC01_STR-ACCTASSCAT sy-vline 
WA_/SAPPCE/TDPC01_STR-TAXJURCODE sy-vline 
WA_/SAPPCE/TDPC01_STR-INFO_CLRNG_DP sy-vline 
WA_/SAPPCE/TDPC01_STR-IND_LOGISTICS sy-vline      INTO ld_text SEPARATED BY SPACE.

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