ABAP Select data from SAP table ETLOG_PAR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ETLOG_PAR
*  INTO TABLE @DATA(IT_ETLOG_PAR2).
*--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_ETLOG_PAR INDEX 1 INTO DATA(WA_ETLOG_PAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ETLOG_PAR>-TESTCONFIG = 1.
<ETLOG_PAR>-TESTCASE = 1.
<ETLOG_PAR>-VARID = 1.
<ETLOG_PAR>-DATUM = 1.
<ETLOG_PAR>-JAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ETLOG_PAR-LPC, sy-vline,
  WA_ETLOG_PAR-LWD, sy-vline,
  WA_ETLOG_PAR-CHER, sy-vline,
  WA_ETLOG_PAR-MODE, sy-vline,
  WA_ETLOG_PAR-FORCE, sy-vline,
  WA_ETLOG_PAR-INTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ETLOG_PAR 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_ETLOG_PAR 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_ETLOG_PAR INTO WA_ETLOG_PAR.


*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_ETLOG_PAR_STR, 
TESTCONFIG TYPE STRING,
TESTCASE TYPE STRING,
VARID TYPE STRING,
DATUM TYPE STRING,
JAHR TYPE STRING,
LPC TYPE STRING,
LWD TYPE STRING,
CHER TYPE STRING,
MODE TYPE STRING,
FORCE TYPE STRING,
INTR TYPE STRING,
SUBRC TYPE STRING,
SAPRL TYPE STRING,
VERSION TYPE STRING,
EXCEPTION TYPE STRING,
M01 TYPE STRING,
M02 TYPE STRING,
M03 TYPE STRING,
M04 TYPE STRING,
MSG TYPE STRING,
MSGTEXT TYPE STRING,
MSGSPRA TYPE STRING,
MSGTYP TYPE STRING,
MSGID TYPE STRING,
MSGNR TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSX TYPE STRING,
GUITYPE TYPE STRING,
REM_CATT_INT_TSYS TYPE STRING,
LAST_INSTANCE_KEY TYPE STRING,
TFILL TYPE STRING,
TABIX TYPE STRING,
LTC TYPE STRING,
LAST_COUNT TYPE STRING,
TESTPHASE TYPE STRING,
TWB_PLAN TYPE STRING,
TWB_PLAN_ID TYPE STRING,
TWB_PACKAGE TYPE STRING,
TWB_PACKAGE_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ETLOG_PAR_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_ETLOG_PAR_STR-TESTCONFIG sy-vline 
WA_ETLOG_PAR_STR-TESTCASE sy-vline 
WA_ETLOG_PAR_STR-VARID sy-vline 
WA_ETLOG_PAR_STR-DATUM sy-vline 
WA_ETLOG_PAR_STR-JAHR sy-vline 
WA_ETLOG_PAR_STR-LPC sy-vline 
WA_ETLOG_PAR_STR-LWD sy-vline 
WA_ETLOG_PAR_STR-CHER sy-vline 
WA_ETLOG_PAR_STR-MODE sy-vline 
WA_ETLOG_PAR_STR-FORCE sy-vline 
WA_ETLOG_PAR_STR-INTR sy-vline 
WA_ETLOG_PAR_STR-SUBRC sy-vline 
WA_ETLOG_PAR_STR-SAPRL sy-vline 
WA_ETLOG_PAR_STR-VERSION sy-vline 
WA_ETLOG_PAR_STR-EXCEPTION sy-vline 
WA_ETLOG_PAR_STR-M01 sy-vline 
WA_ETLOG_PAR_STR-M02 sy-vline 
WA_ETLOG_PAR_STR-M03 sy-vline 
WA_ETLOG_PAR_STR-M04 sy-vline 
WA_ETLOG_PAR_STR-MSG sy-vline 
WA_ETLOG_PAR_STR-MSGTEXT sy-vline 
WA_ETLOG_PAR_STR-MSGSPRA sy-vline 
WA_ETLOG_PAR_STR-MSGTYP sy-vline 
WA_ETLOG_PAR_STR-MSGID sy-vline 
WA_ETLOG_PAR_STR-MSGNR sy-vline 
WA_ETLOG_PAR_STR-MSGV1 sy-vline 
WA_ETLOG_PAR_STR-MSGV2 sy-vline 
WA_ETLOG_PAR_STR-MSGV3 sy-vline 
WA_ETLOG_PAR_STR-MSGV4 sy-vline 
WA_ETLOG_PAR_STR-MSX sy-vline 
WA_ETLOG_PAR_STR-GUITYPE sy-vline 
WA_ETLOG_PAR_STR-REM_CATT_INT_TSYS sy-vline 
WA_ETLOG_PAR_STR-LAST_INSTANCE_KEY sy-vline 
WA_ETLOG_PAR_STR-TFILL sy-vline 
WA_ETLOG_PAR_STR-TABIX sy-vline 
WA_ETLOG_PAR_STR-LTC sy-vline 
WA_ETLOG_PAR_STR-LAST_COUNT sy-vline 
WA_ETLOG_PAR_STR-TESTPHASE sy-vline 
WA_ETLOG_PAR_STR-TWB_PLAN sy-vline 
WA_ETLOG_PAR_STR-TWB_PLAN_ID sy-vline 
WA_ETLOG_PAR_STR-TWB_PACKAGE sy-vline 
WA_ETLOG_PAR_STR-TWB_PACKAGE_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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