ABAP Select data from SAP table CPCMM_PSMPC01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPCMM_PSMPC01 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 CPCMM_PSMPC01. 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 CPCMM_PSMPC01 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_CPCMM_PSMPC01 TYPE STANDARD TABLE OF CPCMM_PSMPC01,
      WA_CPCMM_PSMPC01 TYPE CPCMM_PSMPC01,
      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: <CPCMM_PSMPC01> TYPE CPCMM_PSMPC01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CPCMM_PSMPC01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CPCMM_PSMPC01
  INTO TABLE IT_CPCMM_PSMPC01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPCMM_PSMPC01
*  INTO TABLE @DATA(IT_CPCMM_PSMPC012).
*--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_CPCMM_PSMPC01 INDEX 1 INTO DATA(WA_CPCMM_PSMPC012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CPCMM_PSMPC01 ASSIGNING <CPCMM_PSMPC01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPCMM_PSMPC01>-MANDT = 1.
<CPCMM_PSMPC01>-PRICINGDOCUMENT = 1.
<CPCMM_PSMPC01>-CONDITIONTYPE = 1.
<CPCMM_PSMPC01>-PURCHASINGDOCUMENTCATEGORY = 1.
<CPCMM_PSMPC01>-PURCHASINGDOCUMENT = 1.

ENDLOOP.

LOOP AT IT_CPCMM_PSMPC01 INTO WA_CPCMM_PSMPC01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPCMM_PSMPC01-SDDOCUMENTCATEGORY, sy-vline,
  WA_CPCMM_PSMPC01-SALESDOCUMENT, sy-vline,
  WA_CPCMM_PSMPC01-CONTRACTNUM, sy-vline,
  WA_CPCMM_PSMPC01-PRICINGDOCUMENTITEM, sy-vline,
  WA_CPCMM_PSMPC01-CONDITIONTERMRATEFIXATION, sy-vline,
  WA_CPCMM_PSMPC01-MATERIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPCMM_PSMPC01 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_CPCMM_PSMPC01 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_CPCMM_PSMPC01 INTO WA_CPCMM_PSMPC01.


*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 PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SALESDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-SALESDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-SALESDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACTNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-CONTRACTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-CONTRACTNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMMODITYORDERREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-COMMODITYORDERREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-COMMODITYORDERREQUEST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMMODITYSUBACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-COMMODITYSUBACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-COMMODITYSUBACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMMODITYORDERFILL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-COMMODITYORDERFILL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-COMMODITYORDERFILL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CMMDTYORDFILLFINANCIALTRANSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-CMMDTYORDFILLFINANCIALTRANSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-CMMDTYORDFILLFINANCIALTRANSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-BASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CONDITIONTERMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPCMM_PSMPC01-CONDITIONTERMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPCMM_PSMPC01-CONDITIONTERMUNIT.
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_CPCMM_PSMPC01_STR, 
MANDT TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
CONDITIONTYPE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
SALESDOCUMENT TYPE STRING,
CONTRACTNUM TYPE STRING,
PRICINGDOCUMENTITEM TYPE STRING,
CONDITIONTERMRATEFIXATION TYPE STRING,
MATERIAL TYPE STRING,
PRICESETTINGMETHOD TYPE STRING,
PRICESETTINGMETHODSTATUS TYPE STRING,
DERIVATIVECONTRSPECIFICATION TYPE STRING,
MARKETIDENTIFIERCODE TYPE STRING,
MATURITYKEYDATE TYPE STRING,
COMMODITYORDERREQUEST TYPE STRING,
COMMODITYSUBACCOUNT TYPE STRING,
CMMDTYORDERREQUESTSTATUS TYPE STRING,
CMMDTYORDERFILLPACKETSTATUS TYPE STRING,
COMMODITYORDERFILL TYPE STRING,
CMMDTYORDFILLFINANCIALTRANSID TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
QUANTITYINBASEUNIT TYPE STRING,
BASEUNIT TYPE STRING,
CONDITIONTERMQUANTITY TYPE STRING,
CONDITIONTERMUNIT TYPE STRING,
NUMBEROFCOMMODITYCONTRACTS TYPE STRING,
CMMDTYORDREQDOCTOFILLQTY TYPE STRING,
CMMDTYORDREQDOCTOFILLQTYUNIT TYPE STRING,
CMMDTYORDERFILLQUANTITYINLOTS TYPE STRING,
CMMDTYORDFILLQUANTITYPERLOT TYPE STRING,
CMMDTYORDFILLUOMPERLOT TYPE STRING,
CMMDTYORDERFILLPRICE TYPE STRING,
CMMDTYORDERFILLPRICECRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPCMM_PSMPC01_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_CPCMM_PSMPC01_STR-MANDT sy-vline 
WA_CPCMM_PSMPC01_STR-PRICINGDOCUMENT sy-vline 
WA_CPCMM_PSMPC01_STR-CONDITIONTYPE sy-vline 
WA_CPCMM_PSMPC01_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CPCMM_PSMPC01_STR-PURCHASINGDOCUMENT sy-vline 
WA_CPCMM_PSMPC01_STR-SDDOCUMENTCATEGORY sy-vline 
WA_CPCMM_PSMPC01_STR-SALESDOCUMENT sy-vline 
WA_CPCMM_PSMPC01_STR-CONTRACTNUM sy-vline 
WA_CPCMM_PSMPC01_STR-PRICINGDOCUMENTITEM sy-vline 
WA_CPCMM_PSMPC01_STR-CONDITIONTERMRATEFIXATION sy-vline 
WA_CPCMM_PSMPC01_STR-MATERIAL sy-vline 
WA_CPCMM_PSMPC01_STR-PRICESETTINGMETHOD sy-vline 
WA_CPCMM_PSMPC01_STR-PRICESETTINGMETHODSTATUS sy-vline 
WA_CPCMM_PSMPC01_STR-DERIVATIVECONTRSPECIFICATION sy-vline 
WA_CPCMM_PSMPC01_STR-MARKETIDENTIFIERCODE sy-vline 
WA_CPCMM_PSMPC01_STR-MATURITYKEYDATE sy-vline 
WA_CPCMM_PSMPC01_STR-COMMODITYORDERREQUEST sy-vline 
WA_CPCMM_PSMPC01_STR-COMMODITYSUBACCOUNT sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDERREQUESTSTATUS sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDERFILLPACKETSTATUS sy-vline 
WA_CPCMM_PSMPC01_STR-COMMODITYORDERFILL sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDFILLFINANCIALTRANSID sy-vline 
WA_CPCMM_PSMPC01_STR-CREATIONDATETIME sy-vline 
WA_CPCMM_PSMPC01_STR-LASTCHANGEDATETIME sy-vline 
WA_CPCMM_PSMPC01_STR-QUANTITYINBASEUNIT sy-vline 
WA_CPCMM_PSMPC01_STR-BASEUNIT sy-vline 
WA_CPCMM_PSMPC01_STR-CONDITIONTERMQUANTITY sy-vline 
WA_CPCMM_PSMPC01_STR-CONDITIONTERMUNIT sy-vline 
WA_CPCMM_PSMPC01_STR-NUMBEROFCOMMODITYCONTRACTS sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDREQDOCTOFILLQTY sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDREQDOCTOFILLQTYUNIT sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDERFILLQUANTITYINLOTS sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDFILLQUANTITYPERLOT sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDFILLUOMPERLOT sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDERFILLPRICE sy-vline 
WA_CPCMM_PSMPC01_STR-CMMDTYORDERFILLPRICECRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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