ABAP Select data from SAP table IRPACHKCSTRTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRPACHKCSTRTR
*  INTO TABLE @DATA(IT_IRPACHKCSTRTR2).
*--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_IRPACHKCSTRTR INDEX 1 INTO DATA(WA_IRPACHKCSTRTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRPACHKCSTRTR>-MANDT = 1.
<IRPACHKCSTRTR>-REVPRODALLOCCHKCSTRTRSLTUUID = 1.
<IRPACHKCSTRTR>-REVPRODALLOCCHKSUBREQUUID = 1.
<IRPACHKCSTRTR>-ATPCHECKUUID = 1.
<IRPACHKCSTRTR>-PRODALLOCSQNCCONSTRAINTUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRPACHKCSTRTR-CHARCVALUECOMBINATIONUUID, sy-vline,
  WA_IRPACHKCSTRTR-PRODALLOCCHKDATASNAPSHOTTYPE, sy-vline,
  WA_IRPACHKCSTRTR-PRODALLOCCHKRSTRCNSTATUS, sy-vline,
  WA_IRPACHKCSTRTR-PRODALLOCCHECKQUANTITY, sy-vline,
  WA_IRPACHKCSTRTR-PRODALLOCREQUESTEDQUANTITYUNIT, sy-vline,
  WA_IRPACHKCSTRTR-PRODALLOCCHECKUTCDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRPACHKCSTRTR 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_IRPACHKCSTRTR 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_IRPACHKCSTRTR INTO WA_IRPACHKCSTRTR.


*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 CUNIT, internal->external for field PRODALLOCREQUESTEDQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IRPACHKCSTRTR-PRODALLOCREQUESTEDQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRPACHKCSTRTR-PRODALLOCREQUESTEDQUANTITYUNIT.
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_IRPACHKCSTRTR_STR, 
MANDT TYPE STRING,
REVPRODALLOCCHKCSTRTRSLTUUID TYPE STRING,
REVPRODALLOCCHKSUBREQUUID TYPE STRING,
ATPCHECKUUID TYPE STRING,
PRODALLOCSQNCCONSTRAINTUUID TYPE STRING,
CHARCVALUECOMBINATIONUUID TYPE STRING,
PRODALLOCCHKDATASNAPSHOTTYPE TYPE STRING,
PRODALLOCCHKRSTRCNSTATUS TYPE STRING,
PRODALLOCCHECKQUANTITY TYPE STRING,
PRODALLOCREQUESTEDQUANTITYUNIT TYPE STRING,
PRODALLOCCHECKUTCDATETIME TYPE STRING,
PRODALLOCCHECKTIMEZONE TYPE STRING,
PRODALLOCGOODSISSUEUTCDATETIME TYPE STRING,
PRODALLOCGOODSISSUETIMEZONE TYPE STRING,
PRODALLOCMATLAVAILYUTCDATETIME TYPE STRING,
PRODALLOCMATLAVAILYTIMEZONE TYPE STRING,
PRODALLOCLEADTMESTARTUTCDTETME TYPE STRING,
PRODALLOCREQDDELIVUTCDATETIME TYPE STRING,
PRODALLOCREQDDELIVTIMEZONE TYPE STRING,
NUMBEROFBACKWARDCNSMPNPERIODS TYPE STRING,
NUMBEROFFORWARDCNSMPNPERIODS TYPE STRING,
HORIZONTALCONSUMPTIONDIRECTION TYPE STRING,
PASTPERIODISALLOWED TYPE STRING,
PRODALLOCLEADTIMEDURATION TYPE STRING,
PRODALLOCLEADTIMEDURATIONUNIT TYPE STRING,
PRODALLOCATIONCONSTRAINTSTATUS TYPE STRING,
PRODUCTALLOCATIONRATE TYPE STRING,
PRODALLOCCHECKDATETIMETYPE TYPE STRING,
ONLYOVERLAPPINGQTYISCONSUMED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRPACHKCSTRTR_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_IRPACHKCSTRTR_STR-MANDT sy-vline 
WA_IRPACHKCSTRTR_STR-REVPRODALLOCCHKCSTRTRSLTUUID sy-vline 
WA_IRPACHKCSTRTR_STR-REVPRODALLOCCHKSUBREQUUID sy-vline 
WA_IRPACHKCSTRTR_STR-ATPCHECKUUID sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCSQNCCONSTRAINTUUID sy-vline 
WA_IRPACHKCSTRTR_STR-CHARCVALUECOMBINATIONUUID sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHKDATASNAPSHOTTYPE sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHKRSTRCNSTATUS sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHECKQUANTITY sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCREQUESTEDQUANTITYUNIT sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHECKUTCDATETIME sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHECKTIMEZONE sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCGOODSISSUEUTCDATETIME sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCGOODSISSUETIMEZONE sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCMATLAVAILYUTCDATETIME sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCMATLAVAILYTIMEZONE sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCLEADTMESTARTUTCDTETME sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCREQDDELIVUTCDATETIME sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCREQDDELIVTIMEZONE sy-vline 
WA_IRPACHKCSTRTR_STR-NUMBEROFBACKWARDCNSMPNPERIODS sy-vline 
WA_IRPACHKCSTRTR_STR-NUMBEROFFORWARDCNSMPNPERIODS sy-vline 
WA_IRPACHKCSTRTR_STR-HORIZONTALCONSUMPTIONDIRECTION sy-vline 
WA_IRPACHKCSTRTR_STR-PASTPERIODISALLOWED sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCLEADTIMEDURATION sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCLEADTIMEDURATIONUNIT sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCATIONCONSTRAINTSTATUS sy-vline 
WA_IRPACHKCSTRTR_STR-PRODUCTALLOCATIONRATE sy-vline 
WA_IRPACHKCSTRTR_STR-PRODALLOCCHECKDATETIMETYPE sy-vline 
WA_IRPACHKCSTRTR_STR-ONLYOVERLAPPINGQTYISCONSUMED sy-vline      INTO ld_text SEPARATED BY SPACE.

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