ABAP Select data from SAP table ISETLMNTLINKDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISETLMNTLINKDET
*  INTO TABLE @DATA(IT_ISETLMNTLINKDET2).
*--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_ISETLMNTLINKDET INDEX 1 INTO DATA(WA_ISETLMNTLINKDET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISETLMNTLINKDET>-MANDT = 1.
<ISETLMNTLINKDET>-SETTLEMENTUNITUUID = 1.
<ISETLMNTLINKDET>-CONTRACTNUM = 1.
<ISETLMNTLINKDET>-TRADINGCONTRACTITEM = 1.
<ISETLMNTLINKDET>-CONTRACTCOMMODITYITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISETLMNTLINKDET-CONTRACTAPPLICATIONUUID, sy-vline,
  WA_ISETLMNTLINKDET-CONTRACTAPPLICATIONVERSION, sy-vline,
  WA_ISETLMNTLINKDET-ACMSETTLEMENTCREATIONDATETIME, sy-vline,
  WA_ISETLMNTLINKDET-SETTLMTCAT, sy-vline,
  WA_ISETLMNTLINKDET-SETTLEMENTSTATUSOBJECT, sy-vline,
  WA_ISETLMNTLINKDET-CONTRACTAPPLICATIONDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISETLMNTLINKDET 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_ISETLMNTLINKDET 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_ISETLMNTLINKDET INTO WA_ISETLMNTLINKDET.


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

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

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

*Conversion exit GJAHR, internal->external for field SETTLMTDOCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISETLMNTLINKDET-SETTLMTDOCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISETLMNTLINKDET-SETTLMTDOCYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field SETTLEMENTDOCINVOICEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISETLMNTLINKDET-SETTLEMENTDOCINVOICEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISETLMNTLINKDET-SETTLEMENTDOCINVOICEYEAR.
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_ISETLMNTLINKDET_STR, 
MANDT TYPE STRING,
SETTLEMENTUNITUUID TYPE STRING,
CONTRACTNUM TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
CONTRACTCOMMODITYITEM TYPE STRING,
CONTRACTAPPLICATIONUUID TYPE STRING,
CONTRACTAPPLICATIONVERSION TYPE STRING,
ACMSETTLEMENTCREATIONDATETIME TYPE STRING,
SETTLMTCAT TYPE STRING,
SETTLEMENTSTATUSOBJECT TYPE STRING,
CONTRACTAPPLICATIONDOCUMENT TYPE STRING,
APPLICATIONDOCUMENTITEM TYPE STRING,
SETTLMTDOC TYPE STRING,
SETTLEMENTSCENARIO TYPE STRING,
CNDNCONTRSETTLMTTYPE TYPE STRING,
SETTLMTDOCYEAR TYPE STRING,
SIDE TYPE STRING,
SETTLEMENTDOCGROUPUUID TYPE STRING,
SETTLEMENTGROUPID TYPE STRING,
SETTLMTQUANTITY TYPE STRING,
SETTLMTQUANTITYUNIT TYPE STRING,
SETTLEMENTDOCINVOICENUMBER TYPE STRING,
SETTLEMENTDOCINVOICEYEAR TYPE STRING,
SETTLEMENTDOCINVOICEDOCTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISETLMNTLINKDET_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_ISETLMNTLINKDET_STR-MANDT sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTUNITUUID sy-vline 
WA_ISETLMNTLINKDET_STR-CONTRACTNUM sy-vline 
WA_ISETLMNTLINKDET_STR-TRADINGCONTRACTITEM sy-vline 
WA_ISETLMNTLINKDET_STR-CONTRACTCOMMODITYITEM sy-vline 
WA_ISETLMNTLINKDET_STR-CONTRACTAPPLICATIONUUID sy-vline 
WA_ISETLMNTLINKDET_STR-CONTRACTAPPLICATIONVERSION sy-vline 
WA_ISETLMNTLINKDET_STR-ACMSETTLEMENTCREATIONDATETIME sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLMTCAT sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTSTATUSOBJECT sy-vline 
WA_ISETLMNTLINKDET_STR-CONTRACTAPPLICATIONDOCUMENT sy-vline 
WA_ISETLMNTLINKDET_STR-APPLICATIONDOCUMENTITEM sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLMTDOC sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTSCENARIO sy-vline 
WA_ISETLMNTLINKDET_STR-CNDNCONTRSETTLMTTYPE sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLMTDOCYEAR sy-vline 
WA_ISETLMNTLINKDET_STR-SIDE sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTDOCGROUPUUID sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTGROUPID sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLMTQUANTITY sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLMTQUANTITYUNIT sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTDOCINVOICENUMBER sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTDOCINVOICEYEAR sy-vline 
WA_ISETLMNTLINKDET_STR-SETTLEMENTDOCINVOICEDOCTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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