ABAP Select data from SAP table SYB_DB_DETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SYB_DB_DETAILS
*  INTO TABLE @DATA(IT_SYB_DB_DETAILS2).
*--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_SYB_DB_DETAILS INDEX 1 INTO DATA(WA_SYB_DB_DETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SYB_DB_DETAILS>-DBID = 1.
<SYB_DB_DETAILS>-BULKCOPY = 1.
<SYB_DB_DETAILS>-TRUNC_LOG_ON_CHKPT = 1.
<SYB_DB_DETAILS>-NO_CHKPT_ON_RECOVERY = 1.
<SYB_DB_DETAILS>-RECOVERY_STARTED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SYB_DB_DETAILS-DDL_IN_TRAN, sy-vline,
  WA_SYB_DB_DETAILS-READ_ONLY, sy-vline,
  WA_SYB_DB_DETAILS-DBO_USE_ONLY, sy-vline,
  WA_SYB_DB_DETAILS-SINGLE_USER, sy-vline,
  WA_SYB_DB_DETAILS-NULLS_BY_DEFAULT, sy-vline,
  WA_SYB_DB_DETAILS-ABORT_TRAN_ON_LOG_FULL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SYB_DB_DETAILS 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_SYB_DB_DETAILS 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_SYB_DB_DETAILS INTO WA_SYB_DB_DETAILS.


*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_SYB_DB_DETAILS_STR, 
DBID TYPE STRING,
BULKCOPY TYPE STRING,
TRUNC_LOG_ON_CHKPT TYPE STRING,
NO_CHKPT_ON_RECOVERY TYPE STRING,
RECOVERY_STARTED TYPE STRING,
DDL_IN_TRAN TYPE STRING,
READ_ONLY TYPE STRING,
DBO_USE_ONLY TYPE STRING,
SINGLE_USER TYPE STRING,
NULLS_BY_DEFAULT TYPE STRING,
ABORT_TRAN_ON_LOG_FULL TYPE STRING,
NO_FREE_SPACE_ACCTG TYPE STRING,
AUTO_IDENTITY TYPE STRING,
IDENTITY_IN_NONUNIQUE_IDX TYPE STRING,
AUTO_IDENTITY_UNIQUE_CONSTR TYPE STRING,
ASYNC_LOG_SERVICE TYPE STRING,
DELAYED_COMMIT TYPE STRING,
SCRATCH_DB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SYB_DB_DETAILS_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_SYB_DB_DETAILS_STR-DBID sy-vline 
WA_SYB_DB_DETAILS_STR-BULKCOPY sy-vline 
WA_SYB_DB_DETAILS_STR-TRUNC_LOG_ON_CHKPT sy-vline 
WA_SYB_DB_DETAILS_STR-NO_CHKPT_ON_RECOVERY sy-vline 
WA_SYB_DB_DETAILS_STR-RECOVERY_STARTED sy-vline 
WA_SYB_DB_DETAILS_STR-DDL_IN_TRAN sy-vline 
WA_SYB_DB_DETAILS_STR-READ_ONLY sy-vline 
WA_SYB_DB_DETAILS_STR-DBO_USE_ONLY sy-vline 
WA_SYB_DB_DETAILS_STR-SINGLE_USER sy-vline 
WA_SYB_DB_DETAILS_STR-NULLS_BY_DEFAULT sy-vline 
WA_SYB_DB_DETAILS_STR-ABORT_TRAN_ON_LOG_FULL sy-vline 
WA_SYB_DB_DETAILS_STR-NO_FREE_SPACE_ACCTG sy-vline 
WA_SYB_DB_DETAILS_STR-AUTO_IDENTITY sy-vline 
WA_SYB_DB_DETAILS_STR-IDENTITY_IN_NONUNIQUE_IDX sy-vline 
WA_SYB_DB_DETAILS_STR-AUTO_IDENTITY_UNIQUE_CONSTR sy-vline 
WA_SYB_DB_DETAILS_STR-ASYNC_LOG_SERVICE sy-vline 
WA_SYB_DB_DETAILS_STR-DELAYED_COMMIT sy-vline 
WA_SYB_DB_DETAILS_STR-SCRATCH_DB sy-vline      INTO ld_text SEPARATED BY SPACE.

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