ABAP Select data from SAP table BICZS_SM_LOGON_GRP_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BICZS_SM_LOGON_GRP_DATA
*  INTO TABLE @DATA(IT_BICZS_SM_LOGON_GRP_DATA2).
*--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_BICZS_SM_LOGON_GRP_DATA INDEX 1 INTO DATA(WA_BICZS_SM_LOGON_GRP_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BICZS_SM_LOGON_GRP_DATA>-SYSTEMNAME = 1.
<BICZS_SM_LOGON_GRP_DATA>-KONZS = 1.
<BICZS_SM_LOGON_GRP_DATA>-VERSION = 1.
<BICZS_SM_LOGON_GRP_DATA>-SYSTEMTYPE = 1.
<BICZS_SM_LOGON_GRP_DATA>-LOGONGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BICZS_SM_LOGON_GRP_DATA-SYDATUM, sy-vline,
  WA_BICZS_SM_LOGON_GRP_DATA-SYUZEIT, sy-vline,
  WA_BICZS_SM_LOGON_GRP_DATA-SYUNAME, sy-vline,
  WA_BICZS_SM_LOGON_GRP_DATA-TRCODE, sy-vline,
  WA_BICZS_SM_LOGON_GRP_DATA-GENERATOR, sy-vline,
  WA_BICZS_SM_LOGON_GRP_DATA-AKT_VERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BICZS_SM_LOGON_GRP_DATA 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_BICZS_SM_LOGON_GRP_DATA 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_BICZS_SM_LOGON_GRP_DATA INTO WA_BICZS_SM_LOGON_GRP_DATA.


*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_BICZS_SM_LOGON_GRP_DATA_STR, 
SYSTEMNAME TYPE STRING,
KONZS TYPE STRING,
VERSION TYPE STRING,
SYSTEMTYPE TYPE STRING,
LOGONGROUP TYPE STRING,
SYDATUM TYPE STRING,
SYUZEIT TYPE STRING,
SYUNAME TYPE STRING,
TRCODE TYPE STRING,
GENERATOR TYPE STRING,
AKT_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BICZS_SM_LOGON_GRP_DATA_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_BICZS_SM_LOGON_GRP_DATA_STR-SYSTEMNAME sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-KONZS sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-VERSION sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-SYSTEMTYPE sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-LOGONGROUP sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-SYDATUM sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-SYUZEIT sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-SYUNAME sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-TRCODE sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-GENERATOR sy-vline 
WA_BICZS_SM_LOGON_GRP_DATA_STR-AKT_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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