ABAP Select data from SAP table TPMT_DEDOC_POS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPMT_DEDOC_POS
*  INTO TABLE @DATA(IT_TPMT_DEDOC_POS2).
*--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_TPMT_DEDOC_POS INDEX 1 INTO DATA(WA_TPMT_DEDOC_POS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPMT_DEDOC_POS>-MANDT = 1.
<TPMT_DEDOC_POS>-BUKRS = 1.
<TPMT_DEDOC_POS>-RDOCNRINT = 1.
<TPMT_DEDOC_POS>-RPOSNR = 1.
<TPMT_DEDOC_POS>-ASTUECK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPMT_DEDOC_POS-SNWHR, sy-vline,
  WA_TPMT_DEDOC_POS-BNWHR, sy-vline,
  WA_TPMT_DEDOC_POS-LOT_CAT, sy-vline,
  WA_TPMT_DEDOC_POS-SCWHR, sy-vline,
  WA_TPMT_DEDOC_POS-BCWHR, sy-vline,
  WA_TPMT_DEDOC_POS-SBWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPMT_DEDOC_POS 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_TPMT_DEDOC_POS 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_TPMT_DEDOC_POS INTO WA_TPMT_DEDOC_POS.


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

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

*Conversion exit GJAHR, internal->external for field TRSEGJAHR1
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TPMT_DEDOC_POS-TRSEGJAHR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TPMT_DEDOC_POS-TRSEGJAHR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field TRSEGJAHR2
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TPMT_DEDOC_POS-TRSEGJAHR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TPMT_DEDOC_POS-TRSEGJAHR2.
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_TPMT_DEDOC_POS_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RDOCNRINT TYPE STRING,
RPOSNR TYPE STRING,
ASTUECK TYPE STRING,
SNWHR TYPE STRING,
BNWHR TYPE STRING,
LOT_CAT TYPE STRING,
SCWHR TYPE STRING,
BCWHR TYPE STRING,
SBWHR TYPE STRING,
BBWHR TYPE STRING,
SHWHR TYPE STRING,
BHWHR TYPE STRING,
RANL TYPE STRING,
RLDEPO TYPE STRING,
DBESTAND TYPE STRING,
PM_CAT TYPE STRING,
RREFKONT TYPE STRING,
RANTYP_RREFKONT TYPE STRING,
SBEWART TYPE STRING,
RANTYP_SBEWART TYPE STRING,
GSBER TYPE STRING,
DDISPO TYPE STRING,
TRSEDOCNR1 TYPE STRING,
TRSEGJAHR1 TYPE STRING,
TRSEDOCNR2 TYPE STRING,
TRSEGJAHR2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPMT_DEDOC_POS_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_TPMT_DEDOC_POS_STR-MANDT sy-vline 
WA_TPMT_DEDOC_POS_STR-BUKRS sy-vline 
WA_TPMT_DEDOC_POS_STR-RDOCNRINT sy-vline 
WA_TPMT_DEDOC_POS_STR-RPOSNR sy-vline 
WA_TPMT_DEDOC_POS_STR-ASTUECK sy-vline 
WA_TPMT_DEDOC_POS_STR-SNWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-BNWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-LOT_CAT sy-vline 
WA_TPMT_DEDOC_POS_STR-SCWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-BCWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-SBWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-BBWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-SHWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-BHWHR sy-vline 
WA_TPMT_DEDOC_POS_STR-RANL sy-vline 
WA_TPMT_DEDOC_POS_STR-RLDEPO sy-vline 
WA_TPMT_DEDOC_POS_STR-DBESTAND sy-vline 
WA_TPMT_DEDOC_POS_STR-PM_CAT sy-vline 
WA_TPMT_DEDOC_POS_STR-RREFKONT sy-vline 
WA_TPMT_DEDOC_POS_STR-RANTYP_RREFKONT sy-vline 
WA_TPMT_DEDOC_POS_STR-SBEWART sy-vline 
WA_TPMT_DEDOC_POS_STR-RANTYP_SBEWART sy-vline 
WA_TPMT_DEDOC_POS_STR-GSBER sy-vline 
WA_TPMT_DEDOC_POS_STR-DDISPO sy-vline 
WA_TPMT_DEDOC_POS_STR-TRSEDOCNR1 sy-vline 
WA_TPMT_DEDOC_POS_STR-TRSEGJAHR1 sy-vline 
WA_TPMT_DEDOC_POS_STR-TRSEDOCNR2 sy-vline 
WA_TPMT_DEDOC_POS_STR-TRSEGJAHR2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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