ABAP Select data from SAP table PCTRAPPLASGDISF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCTRAPPLASGDISF
*  INTO TABLE @DATA(IT_PCTRAPPLASGDISF2).
*--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_PCTRAPPLASGDISF INDEX 1 INTO DATA(WA_PCTRAPPLASGDISF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCTRAPPLASGDISF>-MANDT = 1.
<PCTRAPPLASGDISF>-CONTRACTNUM = 1.
<PCTRAPPLASGDISF>-TRADINGCONTRACTITEM = 1.
<PCTRAPPLASGDISF>-CONTRACTITEMASSIGNMENTUUID = 1.
<PCTRAPPLASGDISF>-ACMPRICINGASPECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCTRAPPLASGDISF-ACMPRICINGASPECTVALUE, sy-vline,
  WA_PCTRAPPLASGDISF-APPLICATIONDOCUMENT, sy-vline,
  WA_PCTRAPPLASGDISF-APPLICATIONDOCUMENTITEM, sy-vline,
  WA_PCTRAPPLASGDISF-DOCUMENTFROM, sy-vline,
  WA_PCTRAPPLASGDISF-TRDGCONTRPRCGASPECTSRCELOTID, sy-vline,
  WA_PCTRAPPLASGDISF-ACMAPPLASSGMTQTYDISTRSEQNMBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCTRAPPLASGDISF 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_PCTRAPPLASGDISF 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_PCTRAPPLASGDISF INTO WA_PCTRAPPLASGDISF.


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

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

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

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

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

*Conversion exit CUNIT, internal->external for field TRDGCONTRACTITEMUNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCTRAPPLASGDISF-TRDGCONTRACTITEMUNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCTRAPPLASGDISF-TRDGCONTRACTITEMUNITOFMEASURE.
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_PCTRAPPLASGDISF_STR, 
MANDT TYPE STRING,
CONTRACTNUM TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
CONTRACTITEMASSIGNMENTUUID TYPE STRING,
ACMPRICINGASPECT TYPE STRING,
ACMPRICINGASPECTVALUE TYPE STRING,
APPLICATIONDOCUMENT TYPE STRING,
APPLICATIONDOCUMENTITEM TYPE STRING,
DOCUMENTFROM TYPE STRING,
TRDGCONTRPRCGASPECTSRCELOTID TYPE STRING,
ACMAPPLASSGMTQTYDISTRSEQNMBR TYPE STRING,
DISTRIBUTIONUPDATECODE TYPE STRING,
ASSIGNMENTQUANTITY TYPE STRING,
ASSIGNMENTQUANTITYUOM TYPE STRING,
DISTRASSIGNEDQUANTITY TYPE STRING,
ASSIGNEDQUANTITYUOM TYPE STRING,
CONTRACTTRADEQUANTITY TYPE STRING,
CONTRACTTRADEUNIT TYPE STRING,
CONDITIONTERMRATEFIXATION TYPE STRING,
TRADINGCONTRACTITEMQUANTITY TYPE STRING,
TRDGCONTRACTITEMUNITOFMEASURE TYPE STRING,
F1 TYPE STRING,
F2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCTRAPPLASGDISF_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_PCTRAPPLASGDISF_STR-MANDT sy-vline 
WA_PCTRAPPLASGDISF_STR-CONTRACTNUM sy-vline 
WA_PCTRAPPLASGDISF_STR-TRADINGCONTRACTITEM sy-vline 
WA_PCTRAPPLASGDISF_STR-CONTRACTITEMASSIGNMENTUUID sy-vline 
WA_PCTRAPPLASGDISF_STR-ACMPRICINGASPECT sy-vline 
WA_PCTRAPPLASGDISF_STR-ACMPRICINGASPECTVALUE sy-vline 
WA_PCTRAPPLASGDISF_STR-APPLICATIONDOCUMENT sy-vline 
WA_PCTRAPPLASGDISF_STR-APPLICATIONDOCUMENTITEM sy-vline 
WA_PCTRAPPLASGDISF_STR-DOCUMENTFROM sy-vline 
WA_PCTRAPPLASGDISF_STR-TRDGCONTRPRCGASPECTSRCELOTID sy-vline 
WA_PCTRAPPLASGDISF_STR-ACMAPPLASSGMTQTYDISTRSEQNMBR sy-vline 
WA_PCTRAPPLASGDISF_STR-DISTRIBUTIONUPDATECODE sy-vline 
WA_PCTRAPPLASGDISF_STR-ASSIGNMENTQUANTITY sy-vline 
WA_PCTRAPPLASGDISF_STR-ASSIGNMENTQUANTITYUOM sy-vline 
WA_PCTRAPPLASGDISF_STR-DISTRASSIGNEDQUANTITY sy-vline 
WA_PCTRAPPLASGDISF_STR-ASSIGNEDQUANTITYUOM sy-vline 
WA_PCTRAPPLASGDISF_STR-CONTRACTTRADEQUANTITY sy-vline 
WA_PCTRAPPLASGDISF_STR-CONTRACTTRADEUNIT sy-vline 
WA_PCTRAPPLASGDISF_STR-CONDITIONTERMRATEFIXATION sy-vline 
WA_PCTRAPPLASGDISF_STR-TRADINGCONTRACTITEMQUANTITY sy-vline 
WA_PCTRAPPLASGDISF_STR-TRDGCONTRACTITEMUNITOFMEASURE sy-vline 
WA_PCTRAPPLASGDISF_STR-F1 sy-vline 
WA_PCTRAPPLASGDISF_STR-F2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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