ABAP Select data from SAP table OIJ_EL_ERRLOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ_EL_ERRLOG
*  INTO TABLE @DATA(IT_OIJ_EL_ERRLOG2).
*--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_OIJ_EL_ERRLOG INDEX 1 INTO DATA(WA_OIJ_EL_ERRLOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ_EL_ERRLOG>-TICKETNR = 1.
<OIJ_EL_ERRLOG>-LOCID = 1.
<OIJ_EL_ERRLOG>-TKT_YEAR = 1.
<OIJ_EL_ERRLOG>-TKT_MONTH = 1.
<OIJ_EL_ERRLOG>-NOMTK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ_EL_ERRLOG-NOMIT, sy-vline,
  WA_OIJ_EL_ERRLOG-MVSCENARIO, sy-vline,
  WA_OIJ_EL_ERRLOG-MVSTEP, sy-vline,
  WA_OIJ_EL_ERRLOG-LIGHT, sy-vline,
  WA_OIJ_EL_ERRLOG-TCODE, sy-vline,
  WA_OIJ_EL_ERRLOG-TCODETEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ_EL_ERRLOG 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_OIJ_EL_ERRLOG 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_OIJ_EL_ERRLOG INTO WA_OIJ_EL_ERRLOG.


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

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

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

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_EL_ERRLOG-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_EL_ERRLOG-DOCNR.
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_OIJ_EL_ERRLOG_STR, 
TICKETNR TYPE STRING,
LOCID TYPE STRING,
TKT_YEAR TYPE STRING,
TKT_MONTH TYPE STRING,
NOMTK TYPE STRING,
NOMIT TYPE STRING,
MVSCENARIO TYPE STRING,
MVSTEP TYPE STRING,
LIGHT TYPE STRING,
TCODE TYPE STRING,
TCODETEXT TYPE STRING,
DOCNR TYPE STRING,
POSNR TYPE STRING,
VBTYP TYPE STRING,
MSGTEXT TYPE STRING,
RETURNCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ_EL_ERRLOG_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_OIJ_EL_ERRLOG_STR-TICKETNR sy-vline 
WA_OIJ_EL_ERRLOG_STR-LOCID sy-vline 
WA_OIJ_EL_ERRLOG_STR-TKT_YEAR sy-vline 
WA_OIJ_EL_ERRLOG_STR-TKT_MONTH sy-vline 
WA_OIJ_EL_ERRLOG_STR-NOMTK sy-vline 
WA_OIJ_EL_ERRLOG_STR-NOMIT sy-vline 
WA_OIJ_EL_ERRLOG_STR-MVSCENARIO sy-vline 
WA_OIJ_EL_ERRLOG_STR-MVSTEP sy-vline 
WA_OIJ_EL_ERRLOG_STR-LIGHT sy-vline 
WA_OIJ_EL_ERRLOG_STR-TCODE sy-vline 
WA_OIJ_EL_ERRLOG_STR-TCODETEXT sy-vline 
WA_OIJ_EL_ERRLOG_STR-DOCNR sy-vline 
WA_OIJ_EL_ERRLOG_STR-POSNR sy-vline 
WA_OIJ_EL_ERRLOG_STR-VBTYP sy-vline 
WA_OIJ_EL_ERRLOG_STR-MSGTEXT sy-vline 
WA_OIJ_EL_ERRLOG_STR-RETURNCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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