ABAP Select data from SAP table ASUBCNTRLPCTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASUBCNTRLPCTR
*  INTO TABLE @DATA(IT_ASUBCNTRLPCTR2).
*--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_ASUBCNTRLPCTR INDEX 1 INTO DATA(WA_ASUBCNTRLPCTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ASUBCNTRLPCTR>-MANDT = 1.
<ASUBCNTRLPCTR>-PURCHASINGPARENTDOCUMENT = 1.
<ASUBCNTRLPCTR>-SUBORDCNTRLPURCONTRACT = 1.
<ASUBCNTRLPCTR>-PROCMTHUBCOMPANYCODEGROUPINGID = 1.
<ASUBCNTRLPCTR>-ACTIVEPURCHASINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASUBCNTRLPCTR-PURCHASECONTRACTTYPE, sy-vline,
  WA_ASUBCNTRLPCTR-COMPANYCODE, sy-vline,
  WA_ASUBCNTRLPCTR-PURCHASINGDOCUMENTSUBTYPE, sy-vline,
  WA_ASUBCNTRLPCTR-PURCHASINGORGANIZATION, sy-vline,
  WA_ASUBCNTRLPCTR-VALIDITYSTARTDATE, sy-vline,
  WA_ASUBCNTRLPCTR-VALIDITYENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASUBCNTRLPCTR 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_ASUBCNTRLPCTR 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_ASUBCNTRLPCTR INTO WA_ASUBCNTRLPCTR.


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

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

*Conversion exit ALPHA, internal->external for field ACTIVEPURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ASUBCNTRLPCTR-ACTIVEPURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASUBCNTRLPCTR-ACTIVEPURCHASINGDOCUMENT.
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_ASUBCNTRLPCTR_STR, 
MANDT TYPE STRING,
PURCHASINGPARENTDOCUMENT TYPE STRING,
SUBORDCNTRLPURCONTRACT TYPE STRING,
PROCMTHUBCOMPANYCODEGROUPINGID TYPE STRING,
ACTIVEPURCHASINGDOCUMENT TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGDOCUMENTSUBTYPE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
CNTRLPURCONTRDESCRIPTION TYPE STRING,
SUBORDCNTRLPURCONTRLASTUPDTSTS TYPE STRING,
SUBORDCNTRLCONTRLASTUPDTDTETME TYPE STRING,
DISTRRESPONSEMESSAGEUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ASUBCNTRLPCTR_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_ASUBCNTRLPCTR_STR-MANDT sy-vline 
WA_ASUBCNTRLPCTR_STR-PURCHASINGPARENTDOCUMENT sy-vline 
WA_ASUBCNTRLPCTR_STR-SUBORDCNTRLPURCONTRACT sy-vline 
WA_ASUBCNTRLPCTR_STR-PROCMTHUBCOMPANYCODEGROUPINGID sy-vline 
WA_ASUBCNTRLPCTR_STR-ACTIVEPURCHASINGDOCUMENT sy-vline 
WA_ASUBCNTRLPCTR_STR-PURCHASECONTRACTTYPE sy-vline 
WA_ASUBCNTRLPCTR_STR-COMPANYCODE sy-vline 
WA_ASUBCNTRLPCTR_STR-PURCHASINGDOCUMENTSUBTYPE sy-vline 
WA_ASUBCNTRLPCTR_STR-PURCHASINGORGANIZATION sy-vline 
WA_ASUBCNTRLPCTR_STR-VALIDITYSTARTDATE sy-vline 
WA_ASUBCNTRLPCTR_STR-VALIDITYENDDATE sy-vline 
WA_ASUBCNTRLPCTR_STR-PURCHASINGGROUP sy-vline 
WA_ASUBCNTRLPCTR_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_ASUBCNTRLPCTR_STR-CNTRLPURCONTRDESCRIPTION sy-vline 
WA_ASUBCNTRLPCTR_STR-SUBORDCNTRLPURCONTRLASTUPDTSTS sy-vline 
WA_ASUBCNTRLPCTR_STR-SUBORDCNTRLCONTRLASTUPDTDTETME sy-vline 
WA_ASUBCNTRLPCTR_STR-DISTRRESPONSEMESSAGEUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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