ABAP Select data from SAP table SDBAC_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SDBAC_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 SDBAC_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 SDBAC_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_SDBAC_DATA TYPE STANDARD TABLE OF SDBAC_DATA,
      WA_SDBAC_DATA TYPE SDBAC_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: <SDBAC_DATA> TYPE SDBAC_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SDBAC_DATA
*  INTO TABLE @DATA(IT_SDBAC_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_SDBAC_DATA INDEX 1 INTO DATA(WA_SDBAC_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SDBAC_DATA>-SHORTCUT = 1.
<SDBAC_DATA>-DBSYS = 1.
<SDBAC_DATA>-OPSYS = 1.
<SDBAC_DATA>-SHORTNAM = 1.
<SDBAC_DATA>-HOST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SDBAC_DATA-PTYPES, sy-vline,
  WA_SDBAC_DATA-CTYPE, sy-vline,
  WA_SDBAC_DATA-CNAME, sy-vline,
  WA_SDBAC_DATA-PSTRING, sy-vline,
  WA_SDBAC_DATA-DURATION, sy-vline,
  WA_SDBAC_DATA-ATYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SDBAC_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_SDBAC_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_SDBAC_DATA INTO WA_SDBAC_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_SDBAC_DATA_STR, 
SHORTCUT TYPE STRING,
DBSYS TYPE STRING,
OPSYS TYPE STRING,
SHORTNAM TYPE STRING,
HOST TYPE STRING,
PTYPES TYPE STRING,
CTYPE TYPE STRING,
CNAME TYPE STRING,
PSTRING TYPE STRING,
DURATION TYPE STRING,
ATYPE TYPE STRING,
EXT1 TYPE STRING,
EXT2 TYPE STRING,
EXT3 TYPE STRING,
BEGREL TYPE STRING,
ENDREL TYPE STRING,
BEGDBREL TYPE STRING,
ENDDBREL TYPE STRING,
ACTMODE TYPE STRING,
PLANMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SDBAC_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_SDBAC_DATA_STR-SHORTCUT sy-vline 
WA_SDBAC_DATA_STR-DBSYS sy-vline 
WA_SDBAC_DATA_STR-OPSYS sy-vline 
WA_SDBAC_DATA_STR-SHORTNAM sy-vline 
WA_SDBAC_DATA_STR-HOST sy-vline 
WA_SDBAC_DATA_STR-PTYPES sy-vline 
WA_SDBAC_DATA_STR-CTYPE sy-vline 
WA_SDBAC_DATA_STR-CNAME sy-vline 
WA_SDBAC_DATA_STR-PSTRING sy-vline 
WA_SDBAC_DATA_STR-DURATION sy-vline 
WA_SDBAC_DATA_STR-ATYPE sy-vline 
WA_SDBAC_DATA_STR-EXT1 sy-vline 
WA_SDBAC_DATA_STR-EXT2 sy-vline 
WA_SDBAC_DATA_STR-EXT3 sy-vline 
WA_SDBAC_DATA_STR-BEGREL sy-vline 
WA_SDBAC_DATA_STR-ENDREL sy-vline 
WA_SDBAC_DATA_STR-BEGDBREL sy-vline 
WA_SDBAC_DATA_STR-ENDDBREL sy-vline 
WA_SDBAC_DATA_STR-ACTMODE sy-vline 
WA_SDBAC_DATA_STR-PLANMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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