ABAP Select data from SAP table IDXLOGDC40 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDXLOGDC40 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 IDXLOGDC40. 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 IDXLOGDC40 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_IDXLOGDC40 TYPE STANDARD TABLE OF IDXLOGDC40,
      WA_IDXLOGDC40 TYPE IDXLOGDC40,
      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: <IDXLOGDC40> TYPE IDXLOGDC40.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDXLOGDC40.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDXLOGDC40
  INTO TABLE IT_IDXLOGDC40.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDXLOGDC40
*  INTO TABLE @DATA(IT_IDXLOGDC402).
*--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_IDXLOGDC40 INDEX 1 INTO DATA(WA_IDXLOGDC402).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDXLOGDC40 ASSIGNING <IDXLOGDC40>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDXLOGDC40>-MANDT = 1.
<IDXLOGDC40>-LOG_GUID = 1.
<IDXLOGDC40>-COUNTER = 1.
<IDXLOGDC40>-TABNAM = 1.
<IDXLOGDC40>-DOCNUM = 1.

ENDLOOP.

LOOP AT IT_IDXLOGDC40 INTO WA_IDXLOGDC40.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDXLOGDC40-DOCREL, sy-vline,
  WA_IDXLOGDC40-STATUS, sy-vline,
  WA_IDXLOGDC40-DIRECT, sy-vline,
  WA_IDXLOGDC40-OUTMOD, sy-vline,
  WA_IDXLOGDC40-EXPRSS, sy-vline,
  WA_IDXLOGDC40-TEST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDXLOGDC40 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_IDXLOGDC40 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_IDXLOGDC40 INTO WA_IDXLOGDC40.


*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 EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_IDXLOGDC40-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDXLOGDC40-SNDPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDXLOGDC40-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDXLOGDC40-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_IDXLOGDC40-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDXLOGDC40-RCVPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDXLOGDC40-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDXLOGDC40-RCVPRN.
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_IDXLOGDC40_STR, 
MANDT TYPE STRING,
LOG_GUID TYPE STRING,
COUNTER TYPE STRING,
TABNAM TYPE STRING,
DOCNUM TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DIRECT TYPE STRING,
OUTMOD TYPE STRING,
EXPRSS TYPE STRING,
TEST TYPE STRING,
IDOCTYP TYPE STRING,
CIMTYP TYPE STRING,
MESTYP TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
SNDPOR TYPE STRING,
SNDPRT TYPE STRING,
SNDPFC TYPE STRING,
SNDPRN TYPE STRING,
SNDSAD TYPE STRING,
SNDLAD TYPE STRING,
RCVPOR TYPE STRING,
RCVPRT TYPE STRING,
RCVPFC TYPE STRING,
RCVPRN TYPE STRING,
RCVSAD TYPE STRING,
RCVLAD TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
SERIAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDXLOGDC40_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_IDXLOGDC40_STR-MANDT sy-vline 
WA_IDXLOGDC40_STR-LOG_GUID sy-vline 
WA_IDXLOGDC40_STR-COUNTER sy-vline 
WA_IDXLOGDC40_STR-TABNAM sy-vline 
WA_IDXLOGDC40_STR-DOCNUM sy-vline 
WA_IDXLOGDC40_STR-DOCREL sy-vline 
WA_IDXLOGDC40_STR-STATUS sy-vline 
WA_IDXLOGDC40_STR-DIRECT sy-vline 
WA_IDXLOGDC40_STR-OUTMOD sy-vline 
WA_IDXLOGDC40_STR-EXPRSS sy-vline 
WA_IDXLOGDC40_STR-TEST sy-vline 
WA_IDXLOGDC40_STR-IDOCTYP sy-vline 
WA_IDXLOGDC40_STR-CIMTYP sy-vline 
WA_IDXLOGDC40_STR-MESTYP sy-vline 
WA_IDXLOGDC40_STR-MESCOD sy-vline 
WA_IDXLOGDC40_STR-MESFCT sy-vline 
WA_IDXLOGDC40_STR-STD sy-vline 
WA_IDXLOGDC40_STR-STDVRS sy-vline 
WA_IDXLOGDC40_STR-STDMES sy-vline 
WA_IDXLOGDC40_STR-SNDPOR sy-vline 
WA_IDXLOGDC40_STR-SNDPRT sy-vline 
WA_IDXLOGDC40_STR-SNDPFC sy-vline 
WA_IDXLOGDC40_STR-SNDPRN sy-vline 
WA_IDXLOGDC40_STR-SNDSAD sy-vline 
WA_IDXLOGDC40_STR-SNDLAD sy-vline 
WA_IDXLOGDC40_STR-RCVPOR sy-vline 
WA_IDXLOGDC40_STR-RCVPRT sy-vline 
WA_IDXLOGDC40_STR-RCVPFC sy-vline 
WA_IDXLOGDC40_STR-RCVPRN sy-vline 
WA_IDXLOGDC40_STR-RCVSAD sy-vline 
WA_IDXLOGDC40_STR-RCVLAD sy-vline 
WA_IDXLOGDC40_STR-CREDAT sy-vline 
WA_IDXLOGDC40_STR-CRETIM sy-vline 
WA_IDXLOGDC40_STR-REFINT sy-vline 
WA_IDXLOGDC40_STR-REFGRP sy-vline 
WA_IDXLOGDC40_STR-REFMES sy-vline 
WA_IDXLOGDC40_STR-ARCKEY sy-vline 
WA_IDXLOGDC40_STR-SERIAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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