ABAP Select data from SAP table PSALESDOCITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSALESDOCITM
*  INTO TABLE @DATA(IT_PSALESDOCITM2).
*--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_PSALESDOCITM INDEX 1 INTO DATA(WA_PSALESDOCITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSALESDOCITM>-MANDT = 1.
<PSALESDOCITM>-SALESDOCUMENT = 1.
<PSALESDOCITM>-SALESDOCUMENTITEM = 1.
<PSALESDOCITM>-SDDOCUMENTCATEGORY = 1.
<PSALESDOCITM>-SALESDOCUMENTITEMTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSALESDOCITM-CONTROLLINGOBJECT, sy-vline,
  WA_PSALESDOCITM-WBSELEMENT, sy-vline,
  WA_PSALESDOCITM-FISCALYEAR, sy-vline,
  WA_PSALESDOCITM-SALESORGANIZATION, sy-vline,
  WA_PSALESDOCITM-DISTRIBUTIONCHANNEL, sy-vline,
  WA_PSALESDOCITM-CONTROLLINGAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSALESDOCITM 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_PSALESDOCITM 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_PSALESDOCITM INTO WA_PSALESDOCITM.


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

*Conversion exit ABPSP, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PSALESDOCITM-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSALESDOCITM-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PSALESDOCITM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSALESDOCITM-FISCALYEAR.
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_PSALESDOCITM_STR, 
MANDT TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
SALESDOCUMENTITEMTEXT TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
WBSELEMENT TYPE STRING,
FISCALYEAR TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
CONTROLLINGAREA TYPE STRING,
DIVISION TYPE STRING,
BUSINESSAREA TYPE STRING,
COMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSALESDOCITM_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_PSALESDOCITM_STR-MANDT sy-vline 
WA_PSALESDOCITM_STR-SALESDOCUMENT sy-vline 
WA_PSALESDOCITM_STR-SALESDOCUMENTITEM sy-vline 
WA_PSALESDOCITM_STR-SDDOCUMENTCATEGORY sy-vline 
WA_PSALESDOCITM_STR-SALESDOCUMENTITEMTEXT sy-vline 
WA_PSALESDOCITM_STR-CONTROLLINGOBJECT sy-vline 
WA_PSALESDOCITM_STR-WBSELEMENT sy-vline 
WA_PSALESDOCITM_STR-FISCALYEAR sy-vline 
WA_PSALESDOCITM_STR-SALESORGANIZATION sy-vline 
WA_PSALESDOCITM_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PSALESDOCITM_STR-CONTROLLINGAREA sy-vline 
WA_PSALESDOCITM_STR-DIVISION sy-vline 
WA_PSALESDOCITM_STR-BUSINESSAREA sy-vline 
WA_PSALESDOCITM_STR-COMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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