ABAP Select data from SAP table PCNTRLWTHPRCHST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCNTRLWTHPRCHST
*  INTO TABLE @DATA(IT_PCNTRLWTHPRCHST2).
*--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_PCNTRLWTHPRCHST INDEX 1 INTO DATA(WA_PCNTRLWTHPRCHST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCNTRLWTHPRCHST>-MANDT = 1.
<PCNTRLWTHPRCHST>-ACTIVEPURCHASINGDOCUMENT = 1.
<PCNTRLWTHPRCHST>-PURCHASINGDOCUMENTVERSION = 1.
<PCNTRLWTHPRCHST>-CENTRALPURCHASECONTRACTITEM = 1.
<PCNTRLWTHPRCHST>-PROCMTHUBPLANTUNIQUEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCNTRLWTHPRCHST-PROCMTHUBCONTRVALIDITYUUID, sy-vline,
  WA_PCNTRLWTHPRCHST-PROCMTHUBCONTRISCURRENTVERSION, sy-vline,
  WA_PCNTRLWTHPRCHST-PURCHASECONTRACTITEMTEXT, sy-vline,
  WA_PCNTRLWTHPRCHST-PURCHASECONTRACTTYPE, sy-vline,
  WA_PCNTRLWTHPRCHST-CONDITIONVALIDITYSTARTDATE, sy-vline,
  WA_PCNTRLWTHPRCHST-CONDITIONVALIDITYENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCNTRLWTHPRCHST 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_PCNTRLWTHPRCHST 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_PCNTRLWTHPRCHST INTO WA_PCNTRLWTHPRCHST.


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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCNTRLWTHPRCHST-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTRLWTHPRCHST-ORDERQUANTITYUNIT.
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_PCNTRLWTHPRCHST_STR, 
MANDT TYPE STRING,
ACTIVEPURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTVERSION TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PROCMTHUBPLANTUNIQUEID TYPE STRING,
PROCMTHUBCONTRVALIDITYUUID TYPE STRING,
PROCMTHUBCONTRISCURRENTVERSION TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
CONDITIONVALIDITYSTARTDATE TYPE STRING,
CONDITIONVALIDITYENDDATE TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEINREPORTINGCURRENCY TYPE STRING,
NETPRICEINREPORTINGCURRENCY2 TYPE STRING,
NETAMOUNT TYPE STRING,
NETAMOUNTINREPORTINGCURRENCY TYPE STRING,
NETAMOUNTINREPORTINGCURRENCY2 TYPE STRING,
PROCMTHUBCONTRBASEPRDOCCRCYAMT TYPE STRING,
PROCMTHUBCONTRBASEPRCRCY1AMT TYPE STRING,
PROCMTHUBCONTRBASEPRCRCY2AMT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
ANALYTICALREPORTINGCURRENCY TYPE STRING,
ANALYTICALREPORTINGCURRENCY2 TYPE STRING,
CREATIONDATE TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
CHANGEREASONISRELEVANTFORVERS TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
CREATEDBYUSER TYPE STRING,
PROCMTHUBINCOTERMSCLASSFCTN TYPE STRING,
PROCMTHUBINCOTERMS2CLASSFCTN TYPE STRING,
PAYMENTTERMS TYPE STRING,
SHIPPINGCONDITION TYPE STRING,
PROCMTHUBCOMPANYCODEGROUPINGID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCNTRLWTHPRCHST_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_PCNTRLWTHPRCHST_STR-MANDT sy-vline 
WA_PCNTRLWTHPRCHST_STR-ACTIVEPURCHASINGDOCUMENT sy-vline 
WA_PCNTRLWTHPRCHST_STR-PURCHASINGDOCUMENTVERSION sy-vline 
WA_PCNTRLWTHPRCHST_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBPLANTUNIQUEID sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCONTRVALIDITYUUID sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCONTRISCURRENTVERSION sy-vline 
WA_PCNTRLWTHPRCHST_STR-PURCHASECONTRACTITEMTEXT sy-vline 
WA_PCNTRLWTHPRCHST_STR-PURCHASECONTRACTTYPE sy-vline 
WA_PCNTRLWTHPRCHST_STR-CONDITIONVALIDITYSTARTDATE sy-vline 
WA_PCNTRLWTHPRCHST_STR-CONDITIONVALIDITYENDDATE sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETPRICEAMOUNT sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETPRICEINREPORTINGCURRENCY sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETPRICEINREPORTINGCURRENCY2 sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETAMOUNT sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETAMOUNTINREPORTINGCURRENCY sy-vline 
WA_PCNTRLWTHPRCHST_STR-NETAMOUNTINREPORTINGCURRENCY2 sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCONTRBASEPRDOCCRCYAMT sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCONTRBASEPRCRCY1AMT sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCONTRBASEPRCRCY2AMT sy-vline 
WA_PCNTRLWTHPRCHST_STR-DOCUMENTCURRENCY sy-vline 
WA_PCNTRLWTHPRCHST_STR-ANALYTICALREPORTINGCURRENCY sy-vline 
WA_PCNTRLWTHPRCHST_STR-ANALYTICALREPORTINGCURRENCY2 sy-vline 
WA_PCNTRLWTHPRCHST_STR-CREATIONDATE sy-vline 
WA_PCNTRLWTHPRCHST_STR-SUPPLIER sy-vline 
WA_PCNTRLWTHPRCHST_STR-COMPANYCODE sy-vline 
WA_PCNTRLWTHPRCHST_STR-PURCHASINGGROUP sy-vline 
WA_PCNTRLWTHPRCHST_STR-PURCHASINGORGANIZATION sy-vline 
WA_PCNTRLWTHPRCHST_STR-MATERIAL sy-vline 
WA_PCNTRLWTHPRCHST_STR-MATERIALGROUP sy-vline 
WA_PCNTRLWTHPRCHST_STR-CHANGEREASONISRELEVANTFORVERS sy-vline 
WA_PCNTRLWTHPRCHST_STR-ORDERQUANTITYUNIT sy-vline 
WA_PCNTRLWTHPRCHST_STR-CREATEDBYUSER sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBINCOTERMSCLASSFCTN sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBINCOTERMS2CLASSFCTN sy-vline 
WA_PCNTRLWTHPRCHST_STR-PAYMENTTERMS sy-vline 
WA_PCNTRLWTHPRCHST_STR-SHIPPINGCONDITION sy-vline 
WA_PCNTRLWTHPRCHST_STR-PROCMTHUBCOMPANYCODEGROUPINGID sy-vline      INTO ld_text SEPARATED BY SPACE.

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