ABAP Select data from SAP table ERP_SLS_LINK_INDX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ERP_SLS_LINK_INDX
*  INTO TABLE @DATA(IT_ERP_SLS_LINK_INDX2).
*--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_ERP_SLS_LINK_INDX INDEX 1 INTO DATA(WA_ERP_SLS_LINK_INDX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ERP_SLS_LINK_INDX>-TABIX = 1.
<ERP_SLS_LINK_INDX>-MANDT = 1.
<ERP_SLS_LINK_INDX>-ROLE = 1.
<ERP_SLS_LINK_INDX>-WORKSET = 1.
<ERP_SLS_LINK_INDX>-USERNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ERP_SLS_LINK_INDX-SPRAS, sy-vline,
  WA_ERP_SLS_LINK_INDX-SUBSET, sy-vline,
  WA_ERP_SLS_LINK_INDX-LINK, sy-vline,
  WA_ERP_SLS_LINK_INDX-LOCATION, sy-vline,
  WA_ERP_SLS_LINK_INDX-REPORT, sy-vline,
  WA_ERP_SLS_LINK_INDX-REP_VARIANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ERP_SLS_LINK_INDX 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_ERP_SLS_LINK_INDX 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_ERP_SLS_LINK_INDX INTO WA_ERP_SLS_LINK_INDX.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ERP_SLS_LINK_INDX-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERP_SLS_LINK_INDX-SPRAS.
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_ERP_SLS_LINK_INDX_STR, 
TABIX TYPE STRING,
MANDT TYPE STRING,
ROLE TYPE STRING,
WORKSET TYPE STRING,
USERNAME TYPE STRING,
SPRAS TYPE STRING,
SUBSET TYPE STRING,
LINK TYPE STRING,
LOCATION TYPE STRING,
REPORT TYPE STRING,
REP_VARIANT TYPE STRING,
COUNTER TYPE STRING,
UDATE TYPE STRING,
UTIME TYPE STRING,
ORD TYPE STRING,
NOCOUNT TYPE STRING,
SPEC_VAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ERP_SLS_LINK_INDX_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_ERP_SLS_LINK_INDX_STR-TABIX sy-vline 
WA_ERP_SLS_LINK_INDX_STR-MANDT sy-vline 
WA_ERP_SLS_LINK_INDX_STR-ROLE sy-vline 
WA_ERP_SLS_LINK_INDX_STR-WORKSET sy-vline 
WA_ERP_SLS_LINK_INDX_STR-USERNAME sy-vline 
WA_ERP_SLS_LINK_INDX_STR-SPRAS sy-vline 
WA_ERP_SLS_LINK_INDX_STR-SUBSET sy-vline 
WA_ERP_SLS_LINK_INDX_STR-LINK sy-vline 
WA_ERP_SLS_LINK_INDX_STR-LOCATION sy-vline 
WA_ERP_SLS_LINK_INDX_STR-REPORT sy-vline 
WA_ERP_SLS_LINK_INDX_STR-REP_VARIANT sy-vline 
WA_ERP_SLS_LINK_INDX_STR-COUNTER sy-vline 
WA_ERP_SLS_LINK_INDX_STR-UDATE sy-vline 
WA_ERP_SLS_LINK_INDX_STR-UTIME sy-vline 
WA_ERP_SLS_LINK_INDX_STR-ORD sy-vline 
WA_ERP_SLS_LINK_INDX_STR-NOCOUNT sy-vline 
WA_ERP_SLS_LINK_INDX_STR-SPEC_VAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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