ABAP Select data from SAP table PCMMPNLNAAGGR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCMMPNLNAAGGR
*  INTO TABLE @DATA(IT_PCMMPNLNAAGGR2).
*--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_PCMMPNLNAAGGR INDEX 1 INTO DATA(WA_PCMMPNLNAAGGR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCMMPNLNAAGGR>-MANDT = 1.
<PCMMPNLNAAGGR>-PRICINGKEY = 1.
<PCMMPNLNAAGGR>-CONDITIONTERMRATEFIXATION = 1.
<PCMMPNLNAAGGR>-VERSION = 1.
<PCMMPNLNAAGGR>-PRICINGDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCMMPNLNAAGGR-SOURCEDOCUMENTITEM, sy-vline,
  WA_PCMMPNLNAAGGR-CONDITIONTYPE, sy-vline,
  WA_PCMMPNLNAAGGR-SUBCONDITIONTYPE, sy-vline,
  WA_PCMMPNLNAAGGR-CONTRACTCONDITIONTYPE, sy-vline,
  WA_PCMMPNLNAAGGR-CONTRACTSUBCONDITIONTYPE, sy-vline,
  WA_PCMMPNLNAAGGR-MARKETCONDITIONTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCMMPNLNAAGGR 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_PCMMPNLNAAGGR 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_PCMMPNLNAAGGR INTO WA_PCMMPNLNAAGGR.


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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PCMMPNLNAAGGR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCMMPNLNAAGGR-MATERIAL.
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_PCMMPNLNAAGGR_STR, 
MANDT TYPE STRING,
PRICINGKEY TYPE STRING,
CONDITIONTERMRATEFIXATION TYPE STRING,
VERSION TYPE STRING,
PRICINGDOCUMENTITEM TYPE STRING,
SOURCEDOCUMENTITEM TYPE STRING,
CONDITIONTYPE TYPE STRING,
SUBCONDITIONTYPE TYPE STRING,
CONTRACTCONDITIONTYPE TYPE STRING,
CONTRACTSUBCONDITIONTYPE TYPE STRING,
MARKETCONDITIONTYPE TYPE STRING,
MARKETSUBCONDITIONTYPE TYPE STRING,
MKTADJMTVALUECONDITIONTYPE TYPE STRING,
VERSSTOCKRECORDUUID TYPE STRING,
COMMODITYQUANTITYINTERMUNIT TYPE STRING,
COMPARCMMDTYQUANTITYINTERMUNIT TYPE STRING,
CONTRACTCONDITIONTERMRATE TYPE STRING,
CTRCALCCONDITIONTERMRATE TYPE STRING,
MARKETCONDITIONTERMRATE TYPE STRING,
CONTRSPREADCNDNTERMRATE TYPE STRING,
FIXEDMKTSPREADCNDNTERMRATE TYPE STRING,
FLOATINGMKTSPREADCNDNTERMRATE TYPE STRING,
SPREADCURRENCY TYPE STRING,
MARKETADJUSTMENTVALUERATE TYPE STRING,
MARKETADJUSTMENTVALUECURRENCY TYPE STRING,
MKTDOCTOSTSTCEXCHRATE TYPE STRING,
MKTMARKETTODOCEXCHRATE TYPE STRING,
SPREADMARKETTODOCEXCHRATE TYPE STRING,
MKTADJMTVALCRCYTOSTSTCEXCHRATE TYPE STRING,
MKTADJMTFXDCRCYTOSTSTCEXCHRATE TYPE STRING,
MKTADJMTVALUECNDNTERMVALUE TYPE STRING,
COMPARMKTADJMTVALCNDNTERMVALUE TYPE STRING,
CONTRACTMKTTODOCEXCHRATE TYPE STRING,
MARKETTODOCFROZENEXCHRATE TYPE STRING,
CONTRDOCTOSTSTCEXCHRATE TYPE STRING,
COMPARMARKETBASISID TYPE STRING,
COMPARMARKETBASISTYPE TYPE STRING,
COMPARATIVEMARKETDCS TYPE STRING,
COMPARMKTMARKETIDENTIFIERCODE TYPE STRING,
COMPARMKTMATURITYKEYDATE TYPE STRING,
COMPARMKTDRVTVCONTRCODE TYPE STRING,
COMPARMKTQUOTATIONPRICETYPE TYPE STRING,
EVALUATIONDATE TYPE STRING,
COMPARATIVEEVALUATIONDATE TYPE STRING,
HASERROR TYPE STRING,
SYSTEMMESSAGENUMBER TYPE STRING,
CMMDTYPRICEEXPSRMASSUNIT TYPE STRING,
CMMDTYPRICEEXPSRQTYINMASSUNIT TYPE STRING,
CMMDTYPRICEEXPSRVOLUMEUNIT TYPE STRING,
CMMDTYPRICEEXPSRQTYINVOLUNIT TYPE STRING,
SOURCEDOCUMENT TYPE STRING,
COMPANYCODE TYPE STRING,
MATERIAL TYPE STRING,
PHYSICALCOMMODITY TYPE STRING,
PLANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCMMPNLNAAGGR_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_PCMMPNLNAAGGR_STR-MANDT sy-vline 
WA_PCMMPNLNAAGGR_STR-PRICINGKEY sy-vline 
WA_PCMMPNLNAAGGR_STR-CONDITIONTERMRATEFIXATION sy-vline 
WA_PCMMPNLNAAGGR_STR-VERSION sy-vline 
WA_PCMMPNLNAAGGR_STR-PRICINGDOCUMENTITEM sy-vline 
WA_PCMMPNLNAAGGR_STR-SOURCEDOCUMENTITEM sy-vline 
WA_PCMMPNLNAAGGR_STR-CONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-SUBCONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRACTCONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRACTSUBCONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETCONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETSUBCONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTADJMTVALUECONDITIONTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-VERSSTOCKRECORDUUID sy-vline 
WA_PCMMPNLNAAGGR_STR-COMMODITYQUANTITYINTERMUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARCMMDTYQUANTITYINTERMUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRACTCONDITIONTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-CTRCALCCONDITIONTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETCONDITIONTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRSPREADCNDNTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-FIXEDMKTSPREADCNDNTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-FLOATINGMKTSPREADCNDNTERMRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-SPREADCURRENCY sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETADJUSTMENTVALUERATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETADJUSTMENTVALUECURRENCY sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTDOCTOSTSTCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTMARKETTODOCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-SPREADMARKETTODOCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTADJMTVALCRCYTOSTSTCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTADJMTFXDCRCYTOSTSTCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MKTADJMTVALUECNDNTERMVALUE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMKTADJMTVALCNDNTERMVALUE sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRACTMKTTODOCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-MARKETTODOCFROZENEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-CONTRDOCTOSTSTCEXCHRATE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMARKETBASISID sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMARKETBASISTYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARATIVEMARKETDCS sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMKTMARKETIDENTIFIERCODE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMKTMATURITYKEYDATE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMKTDRVTVCONTRCODE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARMKTQUOTATIONPRICETYPE sy-vline 
WA_PCMMPNLNAAGGR_STR-EVALUATIONDATE sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPARATIVEEVALUATIONDATE sy-vline 
WA_PCMMPNLNAAGGR_STR-HASERROR sy-vline 
WA_PCMMPNLNAAGGR_STR-SYSTEMMESSAGENUMBER sy-vline 
WA_PCMMPNLNAAGGR_STR-CMMDTYPRICEEXPSRMASSUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-CMMDTYPRICEEXPSRQTYINMASSUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-CMMDTYPRICEEXPSRVOLUMEUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-CMMDTYPRICEEXPSRQTYINVOLUNIT sy-vline 
WA_PCMMPNLNAAGGR_STR-SOURCEDOCUMENT sy-vline 
WA_PCMMPNLNAAGGR_STR-COMPANYCODE sy-vline 
WA_PCMMPNLNAAGGR_STR-MATERIAL sy-vline 
WA_PCMMPNLNAAGGR_STR-PHYSICALCOMMODITY sy-vline 
WA_PCMMPNLNAAGGR_STR-PLANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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