ABAP Select data from SAP table IRELCHKMONTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRELCHKMONTP
*  INTO TABLE @DATA(IT_IRELCHKMONTP2).
*--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_IRELCHKMONTP INDEX 1 INTO DATA(WA_IRELCHKMONTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRELCHKMONTP>-MANDT = 1.
<IRELCHKMONTP>-ARUNRELEASECHECKRUNUUID = 1.
<IRELCHKMONTP>-ARUNRELEASECHECKRUNNAME = 1.
<IRELCHKMONTP>-ARUNRELEASECHECKVARIANTUUID = 1.
<IRELCHKMONTP>-ARUNRELEASECHECKVARIANTDESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRELCHKMONTP-SUPASSGMTEXECUTIONMODE, sy-vline,
  WA_IRELCHKMONTP-ARUNRELEASECHECKVARIANTNAME, sy-vline,
  WA_IRELCHKMONTP-SUPASSIGNRUNISSIMULATION, sy-vline,
  WA_IRELCHKMONTP-ARUNRELEASECHECKGROUPNAME, sy-vline,
  WA_IRELCHKMONTP-STARTEDBYUSER, sy-vline,
  WA_IRELCHKMONTP-ARUNRELCHKSTARTUTCDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRELCHKMONTP 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_IRELCHKMONTP 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_IRELCHKMONTP INTO WA_IRELCHKMONTP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IRELCHKMONTP_STR, 
MANDT TYPE STRING,
ARUNRELEASECHECKRUNUUID TYPE STRING,
ARUNRELEASECHECKRUNNAME TYPE STRING,
ARUNRELEASECHECKVARIANTUUID TYPE STRING,
ARUNRELEASECHECKVARIANTDESC TYPE STRING,
SUPASSGMTEXECUTIONMODE TYPE STRING,
ARUNRELEASECHECKVARIANTNAME TYPE STRING,
SUPASSIGNRUNISSIMULATION TYPE STRING,
ARUNRELEASECHECKGROUPNAME TYPE STRING,
STARTEDBYUSER TYPE STRING,
ARUNRELCHKSTARTUTCDATETIME TYPE STRING,
UXFCALLOCATIONRUNSTATUS TYPE STRING,
UXFCSERVICEORDERSTATUS TYPE STRING,
ORDERQUANTITY TYPE STRING,
CONFIRMEDRQMTQTYINBASEUNIT TYPE STRING,
DELIVEREDQUANTITYINBASEUNIT TYPE STRING,
ASSIGNEDQUANTITYINBASEUNIT TYPE STRING,
FIXEDQUANTITYINBASEUNIT TYPE STRING,
UXFCORDERQUANTITY TYPE STRING,
UXFCCONFIRMEDRQMTQTYINBASEUNIT TYPE STRING,
ONHOLDQUANTITYINBASEUNIT TYPE STRING,
SUPASSGMTRESERVEDQTYINBASEUNIT TYPE STRING,
CRITICALITY TYPE STRING,
STATUSCRITICALITY TYPE STRING,
CRITICALITYTEXT TYPE STRING,
UXFCAPPLICATIONLOGHANDLE TYPE STRING,
APPLICATIONLOGHANDLE TYPE STRING,
LOGHANDLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRELCHKMONTP_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_IRELCHKMONTP_STR-MANDT sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKRUNUUID sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKRUNNAME sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKVARIANTUUID sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKVARIANTDESC sy-vline 
WA_IRELCHKMONTP_STR-SUPASSGMTEXECUTIONMODE sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKVARIANTNAME sy-vline 
WA_IRELCHKMONTP_STR-SUPASSIGNRUNISSIMULATION sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELEASECHECKGROUPNAME sy-vline 
WA_IRELCHKMONTP_STR-STARTEDBYUSER sy-vline 
WA_IRELCHKMONTP_STR-ARUNRELCHKSTARTUTCDATETIME sy-vline 
WA_IRELCHKMONTP_STR-UXFCALLOCATIONRUNSTATUS sy-vline 
WA_IRELCHKMONTP_STR-UXFCSERVICEORDERSTATUS sy-vline 
WA_IRELCHKMONTP_STR-ORDERQUANTITY sy-vline 
WA_IRELCHKMONTP_STR-CONFIRMEDRQMTQTYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-DELIVEREDQUANTITYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-FIXEDQUANTITYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-UXFCORDERQUANTITY sy-vline 
WA_IRELCHKMONTP_STR-UXFCCONFIRMEDRQMTQTYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-ONHOLDQUANTITYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-SUPASSGMTRESERVEDQTYINBASEUNIT sy-vline 
WA_IRELCHKMONTP_STR-CRITICALITY sy-vline 
WA_IRELCHKMONTP_STR-STATUSCRITICALITY sy-vline 
WA_IRELCHKMONTP_STR-CRITICALITYTEXT sy-vline 
WA_IRELCHKMONTP_STR-UXFCAPPLICATIONLOGHANDLE sy-vline 
WA_IRELCHKMONTP_STR-APPLICATIONLOGHANDLE sy-vline 
WA_IRELCHKMONTP_STR-LOGHANDLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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