ABAP Select data from SAP table TOALOGP 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 TOALOGP 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 TOALOGP. 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 TOALOGP 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_TOALOGP TYPE STANDARD TABLE OF TOALOGP,
      WA_TOALOGP TYPE TOALOGP,
      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: <TOALOGP> TYPE TOALOGP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOALOGP
*  INTO TABLE @DATA(IT_TOALOGP2).
*--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_TOALOGP INDEX 1 INTO DATA(WA_TOALOGP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOALOGP>-OALOGMANDT = 1.
<TOALOGP>-OALOGKEY = 1.
<TOALOGP>-OALOGUSER = 1.
<TOALOGP>-OALOGDATE = 1.
<TOALOGP>-OALOGTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOALOGP-OALOGFCT, sy-vline,
  WA_TOALOGP-OALOGAREA, sy-vline,
  WA_TOALOGP-REPORT, sy-vline,
  WA_TOALOGP-INFO, sy-vline,
  WA_TOALOGP-LNR, sy-vline,
  WA_TOALOGP-DATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOALOGP 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_TOALOGP 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_TOALOGP INTO WA_TOALOGP.


*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 SPDEV, internal->external for field DRUCKER
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_TOALOGP-DRUCKER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TOALOGP-DRUCKER.
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_TOALOGP_STR, 
OALOGMANDT TYPE STRING,
OALOGKEY TYPE STRING,
OALOGUSER TYPE STRING,
OALOGDATE TYPE STRING,
OALOGTIME TYPE STRING,
OALOGFCT TYPE STRING,
OALOGAREA TYPE STRING,
REPORT TYPE STRING,
INFO TYPE STRING,
LNR TYPE STRING,
DATUM TYPE STRING,
DRUCKER TYPE STRING,
FORMULAR TYPE STRING,
ARCHIV_ID TYPE STRING,
KURZTEXT TYPE STRING,
BENUTZER TYPE STRING,
ARC_DOC_ID TYPE STRING,
SAP_OBJECT TYPE STRING,
AR_OBJECT TYPE STRING,
SIGN TYPE STRING,
DEL_DATE TYPE STRING,
DATALENGTH TYPE STRING,
D_ARC_D_ID TYPE STRING,
DESCLENGTH TYPE STRING,
AR_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOALOGP_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_TOALOGP_STR-OALOGMANDT sy-vline 
WA_TOALOGP_STR-OALOGKEY sy-vline 
WA_TOALOGP_STR-OALOGUSER sy-vline 
WA_TOALOGP_STR-OALOGDATE sy-vline 
WA_TOALOGP_STR-OALOGTIME sy-vline 
WA_TOALOGP_STR-OALOGFCT sy-vline 
WA_TOALOGP_STR-OALOGAREA sy-vline 
WA_TOALOGP_STR-REPORT sy-vline 
WA_TOALOGP_STR-INFO sy-vline 
WA_TOALOGP_STR-LNR sy-vline 
WA_TOALOGP_STR-DATUM sy-vline 
WA_TOALOGP_STR-DRUCKER sy-vline 
WA_TOALOGP_STR-FORMULAR sy-vline 
WA_TOALOGP_STR-ARCHIV_ID sy-vline 
WA_TOALOGP_STR-KURZTEXT sy-vline 
WA_TOALOGP_STR-BENUTZER sy-vline 
WA_TOALOGP_STR-ARC_DOC_ID sy-vline 
WA_TOALOGP_STR-SAP_OBJECT sy-vline 
WA_TOALOGP_STR-AR_OBJECT sy-vline 
WA_TOALOGP_STR-SIGN sy-vline 
WA_TOALOGP_STR-DEL_DATE sy-vline 
WA_TOALOGP_STR-DATALENGTH sy-vline 
WA_TOALOGP_STR-D_ARC_D_ID sy-vline 
WA_TOALOGP_STR-DESCLENGTH sy-vline 
WA_TOALOGP_STR-AR_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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