ABAP Select data from SAP table ICNTRLPCTRHAPI01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICNTRLPCTRHAPI01 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 ICNTRLPCTRHAPI01. 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 ICNTRLPCTRHAPI01 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_ICNTRLPCTRHAPI01 TYPE STANDARD TABLE OF ICNTRLPCTRHAPI01,
      WA_ICNTRLPCTRHAPI01 TYPE ICNTRLPCTRHAPI01,
      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: <ICNTRLPCTRHAPI01> TYPE ICNTRLPCTRHAPI01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICNTRLPCTRHAPI01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICNTRLPCTRHAPI01
  INTO TABLE IT_ICNTRLPCTRHAPI01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICNTRLPCTRHAPI01
*  INTO TABLE @DATA(IT_ICNTRLPCTRHAPI012).
*--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_ICNTRLPCTRHAPI01 INDEX 1 INTO DATA(WA_ICNTRLPCTRHAPI012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICNTRLPCTRHAPI01 ASSIGNING <ICNTRLPCTRHAPI01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICNTRLPCTRHAPI01>-MANDT = 1.
<ICNTRLPCTRHAPI01>-CENTRALPURCHASECONTRACT = 1.
<ICNTRLPCTRHAPI01>-PURCHASECONTRACTTYPE = 1.
<ICNTRLPCTRHAPI01>-PURCHASINGDOCUMENTCATEGORY = 1.
<ICNTRLPCTRHAPI01>-SUPPLIER = 1.

ENDLOOP.

LOOP AT IT_ICNTRLPCTRHAPI01 INTO WA_ICNTRLPCTRHAPI01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICNTRLPCTRHAPI01-COMPANYCODE, sy-vline,
  WA_ICNTRLPCTRHAPI01-PURCHASINGORGANIZATION, sy-vline,
  WA_ICNTRLPCTRHAPI01-PURCHASINGGROUP, sy-vline,
  WA_ICNTRLPCTRHAPI01-VALIDITYSTARTDATE, sy-vline,
  WA_ICNTRLPCTRHAPI01-VALIDITYENDDATE, sy-vline,
  WA_ICNTRLPCTRHAPI01-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICNTRLPCTRHAPI01 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_ICNTRLPCTRHAPI01 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_ICNTRLPCTRHAPI01 INTO WA_ICNTRLPCTRHAPI01.


*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 CENTRALPURCHASECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRHAPI01-CENTRALPURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRHAPI01-CENTRALPURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRHAPI01-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRHAPI01-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLYINGSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRHAPI01-SUPPLYINGSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRHAPI01-SUPPLYINGSUPPLIER.
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_ICNTRLPCTRHAPI01_STR, 
MANDT TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CREATIONDATE TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
EXCHANGERATE TYPE STRING,
PURCONTRACTEXCHANGERATEVALUE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
SUPPLYINGSUPPLIER TYPE STRING,
QUOTATIONSUBMISSIONDATE TYPE STRING,
SUPPLIERQUOTATION TYPE STRING,
CORRESPNCEXTERNALREFERENCE TYPE STRING,
CORRESPNCINTERNALREFERENCE TYPE STRING,
SUPPLIERRESPSALESPERSONNAME TYPE STRING,
SUPPLIERPHONENUMBER TYPE STRING,
RELEASECODE TYPE STRING,
CREATEDBYUSER TYPE STRING,
PURCHASINGDOCUMENTDELETIONCODE TYPE STRING,
PURCHASINGPROCESSINGSTATUS TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
PURGCONTRACTISINPREPARATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICNTRLPCTRHAPI01_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_ICNTRLPCTRHAPI01_STR-MANDT sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASECONTRACTTYPE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_ICNTRLPCTRHAPI01_STR-SUPPLIER sy-vline 
WA_ICNTRLPCTRHAPI01_STR-COMPANYCODE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASINGORGANIZATION sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASINGGROUP sy-vline 
WA_ICNTRLPCTRHAPI01_STR-VALIDITYSTARTDATE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-VALIDITYENDDATE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-DOCUMENTCURRENCY sy-vline 
WA_ICNTRLPCTRHAPI01_STR-LASTCHANGEDATETIME sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CREATIONDATE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PAYMENTTERMS sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CASHDISCOUNT1DAYS sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CASHDISCOUNT2DAYS sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_ICNTRLPCTRHAPI01_STR-NETPAYMENTDAYS sy-vline 
WA_ICNTRLPCTRHAPI01_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_ICNTRLPCTRHAPI01_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_ICNTRLPCTRHAPI01_STR-INCOTERMSVERSION sy-vline 
WA_ICNTRLPCTRHAPI01_STR-INCOTERMSLOCATION1 sy-vline 
WA_ICNTRLPCTRHAPI01_STR-INCOTERMSLOCATION2 sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_ICNTRLPCTRHAPI01_STR-EXCHANGERATE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCONTRACTEXCHANGERATEVALUE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-EXCHANGERATEISFIXED sy-vline 
WA_ICNTRLPCTRHAPI01_STR-SUPPLYINGSUPPLIER sy-vline 
WA_ICNTRLPCTRHAPI01_STR-QUOTATIONSUBMISSIONDATE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-SUPPLIERQUOTATION sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CORRESPNCEXTERNALREFERENCE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CORRESPNCINTERNALREFERENCE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-SUPPLIERRESPSALESPERSONNAME sy-vline 
WA_ICNTRLPCTRHAPI01_STR-SUPPLIERPHONENUMBER sy-vline 
WA_ICNTRLPCTRHAPI01_STR-RELEASECODE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-CREATEDBYUSER sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURCHASINGPROCESSINGSTATUS sy-vline 
WA_ICNTRLPCTRHAPI01_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_ICNTRLPCTRHAPI01_STR-PURGCONTRACTISINPREPARATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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