ABAP Select data from SAP table PCTRCANCQTY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCTRCANCQTY
*  INTO TABLE @DATA(IT_PCTRCANCQTY2).
*--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_PCTRCANCQTY INDEX 1 INTO DATA(WA_PCTRCANCQTY2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCTRCANCQTY-TRADINGCONTRACTITEMQUANTITY, sy-vline,
  WA_PCTRCANCQTY-TRDGCONTRACTITEMUNITOFMEASURE, sy-vline,
  WA_PCTRCANCQTY-CONTRACTMATERIAL, sy-vline,
  WA_PCTRCANCQTY-CONTRACTPLANT, sy-vline,
  WA_PCTRCANCQTY-TRADINGCONTRACTTYPE, sy-vline,
  WA_PCTRCANCQTY-COMPANYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCTRCANCQTY 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_PCTRCANCQTY 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_PCTRCANCQTY INTO WA_PCTRCANCQTY.


*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_PCTRCANCQTY-CONTRACTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCTRCANCQTY-CONTRACTNUM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field CONTRACTMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PCTRCANCQTY-CONTRACTMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCTRCANCQTY-CONTRACTMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field AGGREGATEDCANCELEDQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCTRCANCQTY-AGGREGATEDCANCELEDQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCTRCANCQTY-AGGREGATEDCANCELEDQTYUNIT.
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_PCTRCANCQTY_STR, 
MANDT TYPE STRING,
CONTRACTNUM TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
ACMPRICINGASPECT TYPE STRING,
ACMPRICINGASPECTVALUE TYPE STRING,
TRADINGCONTRACTITEMQUANTITY TYPE STRING,
TRDGCONTRACTITEMUNITOFMEASURE TYPE STRING,
CONTRACTMATERIAL TYPE STRING,
CONTRACTPLANT TYPE STRING,
TRADINGCONTRACTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
STORAGELOCATION TYPE STRING,
DOCUMENTSIDE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TRADINGCONTRACTCREATEDBY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
COMMODITY TYPE STRING,
CUSTOMERNAME TYPE STRING,
SUPPLIERNAME TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
PRICINGPROCEDURE TYPE STRING,
TRDGCONTRPRCGASPECTSRCELOTID TYPE STRING,
ACMPRCGCNDNFLATPRICE TYPE STRING,
CONTRACTTRADEQUANTITY TYPE STRING,
CONTRACTTRADEUNIT TYPE STRING,
PRICINGCONDITIONTERM TYPE STRING,
AGGREGATEDCANCELEDQTY TYPE STRING,
AGGREGATEDCANCELEDQTYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCTRCANCQTY_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_PCTRCANCQTY_STR-MANDT sy-vline 
WA_PCTRCANCQTY_STR-CONTRACTNUM sy-vline 
WA_PCTRCANCQTY_STR-TRADINGCONTRACTITEM sy-vline 
WA_PCTRCANCQTY_STR-ACMPRICINGASPECT sy-vline 
WA_PCTRCANCQTY_STR-ACMPRICINGASPECTVALUE sy-vline 
WA_PCTRCANCQTY_STR-TRADINGCONTRACTITEMQUANTITY sy-vline 
WA_PCTRCANCQTY_STR-TRDGCONTRACTITEMUNITOFMEASURE sy-vline 
WA_PCTRCANCQTY_STR-CONTRACTMATERIAL sy-vline 
WA_PCTRCANCQTY_STR-CONTRACTPLANT sy-vline 
WA_PCTRCANCQTY_STR-TRADINGCONTRACTTYPE sy-vline 
WA_PCTRCANCQTY_STR-COMPANYCODE sy-vline 
WA_PCTRCANCQTY_STR-STORAGELOCATION sy-vline 
WA_PCTRCANCQTY_STR-DOCUMENTSIDE sy-vline 
WA_PCTRCANCQTY_STR-DOCUMENTDATE sy-vline 
WA_PCTRCANCQTY_STR-TRADINGCONTRACTCREATEDBY sy-vline 
WA_PCTRCANCQTY_STR-SALESORGANIZATION sy-vline 
WA_PCTRCANCQTY_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PCTRCANCQTY_STR-DIVISION sy-vline 
WA_PCTRCANCQTY_STR-PURCHASINGORGANIZATION sy-vline 
WA_PCTRCANCQTY_STR-PURCHASINGGROUP sy-vline 
WA_PCTRCANCQTY_STR-COMMODITY sy-vline 
WA_PCTRCANCQTY_STR-CUSTOMERNAME sy-vline 
WA_PCTRCANCQTY_STR-SUPPLIERNAME sy-vline 
WA_PCTRCANCQTY_STR-PRICINGDOCUMENT sy-vline 
WA_PCTRCANCQTY_STR-PRICINGPROCEDURE sy-vline 
WA_PCTRCANCQTY_STR-TRDGCONTRPRCGASPECTSRCELOTID sy-vline 
WA_PCTRCANCQTY_STR-ACMPRCGCNDNFLATPRICE sy-vline 
WA_PCTRCANCQTY_STR-CONTRACTTRADEQUANTITY sy-vline 
WA_PCTRCANCQTY_STR-CONTRACTTRADEUNIT sy-vline 
WA_PCTRCANCQTY_STR-PRICINGCONDITIONTERM sy-vline 
WA_PCTRCANCQTY_STR-AGGREGATEDCANCELEDQTY sy-vline 
WA_PCTRCANCQTY_STR-AGGREGATEDCANCELEDQTYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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