ABAP Select data from SAP table IRPACHKCNSMPN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRPACHKCNSMPN
*  INTO TABLE @DATA(IT_IRPACHKCNSMPN2).
*--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_IRPACHKCNSMPN INDEX 1 INTO DATA(WA_IRPACHKCNSMPN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRPACHKCNSMPN>-MANDT = 1.
<IRPACHKCNSMPN>-REVPRODALLOCCHKCNSMPNUUID = 1.
<IRPACHKCNSMPN>-REVPRODALLOCCHKCSTRTRSLTUUID = 1.
<IRPACHKCNSMPN>-ATPCHECKUUID = 1.
<IRPACHKCNSMPN>-CHARCVALUECOMBINATIONUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRPACHKCNSMPN-PRODALLOCCHKDATASNAPSHOTTYPE, sy-vline,
  WA_IRPACHKCNSMPN-PRODALLOCCHKPERIODCNSMPNTYPE, sy-vline,
  WA_IRPACHKCNSMPN-PRODALLOCPERDSTARTUTCDATETIME, sy-vline,
  WA_IRPACHKCNSMPN-PRODALLOCPERIODSTARTTIMEZONE, sy-vline,
  WA_IRPACHKCNSMPN-PRODALLOCCHKORDERVALUE, sy-vline,
  WA_IRPACHKCNSMPN-PRODALLOCPLANNEDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRPACHKCNSMPN 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_IRPACHKCNSMPN 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_IRPACHKCNSMPN INTO WA_IRPACHKCNSMPN.


*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_IRPACHKCNSMPN-PRODALLOCREQUESTEDQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRPACHKCNSMPN-PRODALLOCREQUESTEDQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRODUCTALLOCATIONQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IRPACHKCNSMPN-PRODUCTALLOCATIONQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRPACHKCNSMPN-PRODUCTALLOCATIONQUANTITYUNIT.
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_IRPACHKCNSMPN_STR, 
MANDT TYPE STRING,
REVPRODALLOCCHKCNSMPNUUID TYPE STRING,
REVPRODALLOCCHKCSTRTRSLTUUID TYPE STRING,
ATPCHECKUUID TYPE STRING,
CHARCVALUECOMBINATIONUUID TYPE STRING,
PRODALLOCCHKDATASNAPSHOTTYPE TYPE STRING,
PRODALLOCCHKPERIODCNSMPNTYPE TYPE STRING,
PRODALLOCPERDSTARTUTCDATETIME TYPE STRING,
PRODALLOCPERIODSTARTTIMEZONE TYPE STRING,
PRODALLOCCHKORDERVALUE TYPE STRING,
PRODALLOCPLANNEDQUANTITY TYPE STRING,
PRODALLOCPLNDQTYINALLOCUNIT TYPE STRING,
PRODALLOCCNSMDBYOTHORDQTY TYPE STRING,
CNSMDBYOTHORDQTYINALLOCUNIT TYPE STRING,
PRODALLOCCNSMDBYOTHCSTRTQTY TYPE STRING,
CNSMDBYOTHCSTRTQTYINALLOCUNIT TYPE STRING,
PRODALLOCOWNCNSMPNQTY TYPE STRING,
OWNCNSMPNQTYINALLOCUNIT TYPE STRING,
PRODALLOCDLVRDQTY TYPE STRING,
PRODALLOCDLVRDQTYINALLOCUNIT TYPE STRING,
PRODALLOCSUPASSGDQTY TYPE STRING,
ALLOCSUPASSGDQTYINALLOCUNIT TYPE STRING,
PRODALLOCCNSMDBYOTHERSQTY TYPE STRING,
CNSMDBYOTHERSQTYINALLOCUNIT TYPE STRING,
PRODALLOCAVAILABLEQUANTITY TYPE STRING,
PRODALLOCAVAILQTYINALLOCUNIT TYPE STRING,
PRODALLOCREQUESTEDQUANTITYUNIT TYPE STRING,
PRODUCTALLOCATIONQUANTITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRPACHKCNSMPN_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_IRPACHKCNSMPN_STR-MANDT sy-vline 
WA_IRPACHKCNSMPN_STR-REVPRODALLOCCHKCNSMPNUUID sy-vline 
WA_IRPACHKCNSMPN_STR-REVPRODALLOCCHKCSTRTRSLTUUID sy-vline 
WA_IRPACHKCNSMPN_STR-ATPCHECKUUID sy-vline 
WA_IRPACHKCNSMPN_STR-CHARCVALUECOMBINATIONUUID sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCHKDATASNAPSHOTTYPE sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCHKPERIODCNSMPNTYPE sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCPERDSTARTUTCDATETIME sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCPERIODSTARTTIMEZONE sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCHKORDERVALUE sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCPLANNEDQUANTITY sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCPLNDQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCNSMDBYOTHORDQTY sy-vline 
WA_IRPACHKCNSMPN_STR-CNSMDBYOTHORDQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCNSMDBYOTHCSTRTQTY sy-vline 
WA_IRPACHKCNSMPN_STR-CNSMDBYOTHCSTRTQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCOWNCNSMPNQTY sy-vline 
WA_IRPACHKCNSMPN_STR-OWNCNSMPNQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCDLVRDQTY sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCDLVRDQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCSUPASSGDQTY sy-vline 
WA_IRPACHKCNSMPN_STR-ALLOCSUPASSGDQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCCNSMDBYOTHERSQTY sy-vline 
WA_IRPACHKCNSMPN_STR-CNSMDBYOTHERSQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCAVAILABLEQUANTITY sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCAVAILQTYINALLOCUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODALLOCREQUESTEDQUANTITYUNIT sy-vline 
WA_IRPACHKCNSMPN_STR-PRODUCTALLOCATIONQUANTITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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