ABAP Select data from SAP table ICNTRLPCHDRDISTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICNTRLPCHDRDISTR
*  INTO TABLE @DATA(IT_ICNTRLPCHDRDISTR2).
*--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_ICNTRLPCHDRDISTR INDEX 1 INTO DATA(WA_ICNTRLPCHDRDISTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICNTRLPCHDRDISTR>-MANDT = 1.
<ICNTRLPCHDRDISTR>-CENTRALPURCHASECONTRACT = 1.
<ICNTRLPCHDRDISTR>-DISTRIBUTIONKEY = 1.
<ICNTRLPCHDRDISTR>-CENTRALPURCHASECONTRACTITEM = 1.
<ICNTRLPCHDRDISTR>-PURCHASINGDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICNTRLPCHDRDISTR-PURCHASINGDOCUMENTTYPE, sy-vline,
  WA_ICNTRLPCHDRDISTR-PURCHASINGORGANIZATION, sy-vline,
  WA_ICNTRLPCHDRDISTR-COMPANYCODE, sy-vline,
  WA_ICNTRLPCHDRDISTR-PLANT, sy-vline,
  WA_ICNTRLPCHDRDISTR-LOGICALSYSTEM, sy-vline,
  WA_ICNTRLPCHDRDISTR-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICNTRLPCHDRDISTR 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_ICNTRLPCHDRDISTR 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_ICNTRLPCHDRDISTR INTO WA_ICNTRLPCHDRDISTR.


*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_ICNTRLPCHDRDISTR-CENTRALPURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCHDRDISTR-CENTRALPURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field PROCUREMENTHUBSOURCESYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCHDRDISTR-PROCUREMENTHUBSOURCESYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCHDRDISTR-PROCUREMENTHUBSOURCESYSTEM.
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_ICNTRLPCHDRDISTR_STR, 
MANDT TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
DISTRIBUTIONKEY TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
LOGICALSYSTEM TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
CURRENCY TYPE STRING,
PURCHASINGGROUP TYPE STRING,
STORAGELOCATION TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
CNTRLPURCONTRDISTRIBUTIONPCT TYPE STRING,
TARGETQUANTITY TYPE STRING,
TARGETAMOUNT TYPE STRING,
EXTCONTRACTFORPURG TYPE STRING,
EXTCONTRACTITEMFORPURG TYPE STRING,
ITEMDISTRIBUTIONSTATUS TYPE STRING,
ISDELETED TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
DISTRIBUTIONTYPE TYPE STRING,
DISTRRESPONSEMESSAGEUUID TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PURCHASINGINFORECORDUPDATECODE TYPE STRING,
PROCMTHUBCOMPANYCODEGROUPINGID TYPE STRING,
EXTCONTRACTITEMDISTRFORPURG TYPE STRING,
SOURCELISTISUPDATED TYPE STRING,
SOURCELISTRESTRICTION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
SHIPPINGINSTRUCTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICNTRLPCHDRDISTR_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_ICNTRLPCHDRDISTR_STR-MANDT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-DISTRIBUTIONKEY sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PURCHASINGORGANIZATION sy-vline 
WA_ICNTRLPCHDRDISTR_STR-COMPANYCODE sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PLANT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-LOGICALSYSTEM sy-vline 
WA_ICNTRLPCHDRDISTR_STR-DOCUMENTCURRENCY sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CURRENCY sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PURCHASINGGROUP sy-vline 
WA_ICNTRLPCHDRDISTR_STR-STORAGELOCATION sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PAYMENTTERMS sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CASHDISCOUNT1DAYS sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CASHDISCOUNT2DAYS sy-vline 
WA_ICNTRLPCHDRDISTR_STR-NETPAYMENTDAYS sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-MATERIAL sy-vline 
WA_ICNTRLPCHDRDISTR_STR-MATERIALGROUP sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CNTRLPURCONTRDISTRIBUTIONPCT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-TARGETQUANTITY sy-vline 
WA_ICNTRLPCHDRDISTR_STR-TARGETAMOUNT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-EXTCONTRACTFORPURG sy-vline 
WA_ICNTRLPCHDRDISTR_STR-EXTCONTRACTITEMFORPURG sy-vline 
WA_ICNTRLPCHDRDISTR_STR-ITEMDISTRIBUTIONSTATUS sy-vline 
WA_ICNTRLPCHDRDISTR_STR-ISDELETED sy-vline 
WA_ICNTRLPCHDRDISTR_STR-ORDERQUANTITYUNIT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-DISTRIBUTIONTYPE sy-vline 
WA_ICNTRLPCHDRDISTR_STR-DISTRRESPONSEMESSAGEUUID sy-vline 
WA_ICNTRLPCHDRDISTR_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PURCHASINGINFORECORDUPDATECODE sy-vline 
WA_ICNTRLPCHDRDISTR_STR-PROCMTHUBCOMPANYCODEGROUPINGID sy-vline 
WA_ICNTRLPCHDRDISTR_STR-EXTCONTRACTITEMDISTRFORPURG sy-vline 
WA_ICNTRLPCHDRDISTR_STR-SOURCELISTISUPDATED sy-vline 
WA_ICNTRLPCHDRDISTR_STR-SOURCELISTRESTRICTION sy-vline 
WA_ICNTRLPCHDRDISTR_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_ICNTRLPCHDRDISTR_STR-INCOTERMSLOCATION1 sy-vline 
WA_ICNTRLPCHDRDISTR_STR-SHIPPINGINSTRUCTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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