ABAP Select data from SAP table VBSTAT 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 VBSTAT 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 VBSTAT. 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 VBSTAT 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_VBSTAT TYPE STANDARD TABLE OF VBSTAT,
      WA_VBSTAT TYPE VBSTAT,
      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: <VBSTAT> TYPE VBSTAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBSTAT
*  INTO TABLE @DATA(IT_VBSTAT2).
*--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_VBSTAT INDEX 1 INTO DATA(WA_VBSTAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBSTAT>-VB_ACTIVE = 1.
<VBSTAT>-CREAT_REQ = 1.
<VBSTAT>-PROC_REQ = 1.
<VBSTAT>-START2_REQ = 1.
<VBSTAT>-PROC2_REQ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBSTAT-DEL_REQ, sy-vline,
  WA_VBSTAT-ERRORS, sy-vline,
  WA_VBSTAT-BYTES_READ, sy-vline,
  WA_VBSTAT-BYTE_R_MIN, sy-vline,
  WA_VBSTAT-BYTE_R_AVG, sy-vline,
  WA_VBSTAT-BYTE_R_MAX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBSTAT 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_VBSTAT 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_VBSTAT INTO WA_VBSTAT.


*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_VBSTAT_STR, 
VB_ACTIVE TYPE STRING,
CREAT_REQ TYPE STRING,
PROC_REQ TYPE STRING,
START2_REQ TYPE STRING,
PROC2_REQ TYPE STRING,
DEL_REQ TYPE STRING,
ERRORS TYPE STRING,
BYTES_READ TYPE STRING,
BYTE_R_MIN TYPE STRING,
BYTE_R_AVG TYPE STRING,
BYTE_R_MAX TYPE STRING,
KB_R_P_SEC TYPE STRING,
BYTES_WRIT TYPE STRING,
BYTE_W_MIN TYPE STRING,
BYTE_W_AVG TYPE STRING,
BYTE_W_MAX TYPE STRING,
KB_W_P_SEC TYPE STRING,
READ_TIME TYPE STRING,
READ_T_MIN TYPE STRING,
READ_T_AVG TYPE STRING,
READ_T_MAX TYPE STRING,
WRIT_TIME TYPE STRING,
WRIT_T_MIN TYPE STRING,
WRIT_T_AVG TYPE STRING,
WRIT_T_MAX TYPE STRING,
UPD_TIME TYPE STRING,
UPD_T_MIN TYPE STRING,
UPD_T_AVG TYPE STRING,
UPD_T_MAX TYPE STRING,
COM_TIME TYPE STRING,
COM_T_MIN TYPE STRING,
COM_T_AVG TYPE STRING,
COM_T_MAX TYPE STRING,
DEL_TIME TYPE STRING,
DEL_T_MIN TYPE STRING,
DEL_T_AVG TYPE STRING,
DEL_T_MAX TYPE STRING,
PROC_TIME TYPE STRING,
PROC_T_MIN TYPE STRING,
PROC_T_AVG TYPE STRING,
PROC_T_MAX TYPE STRING,
PRO2_TIME TYPE STRING,
PRO2_T_MIN TYPE STRING,
PRO2_T_AVG TYPE STRING,
PRO2_T_MAX TYPE STRING,
READS TYPE STRING,
WRITES TYPE STRING,
UPDATES TYPE STRING,
COMMITS TYPE STRING,
DELETES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBSTAT_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_VBSTAT_STR-VB_ACTIVE sy-vline 
WA_VBSTAT_STR-CREAT_REQ sy-vline 
WA_VBSTAT_STR-PROC_REQ sy-vline 
WA_VBSTAT_STR-START2_REQ sy-vline 
WA_VBSTAT_STR-PROC2_REQ sy-vline 
WA_VBSTAT_STR-DEL_REQ sy-vline 
WA_VBSTAT_STR-ERRORS sy-vline 
WA_VBSTAT_STR-BYTES_READ sy-vline 
WA_VBSTAT_STR-BYTE_R_MIN sy-vline 
WA_VBSTAT_STR-BYTE_R_AVG sy-vline 
WA_VBSTAT_STR-BYTE_R_MAX sy-vline 
WA_VBSTAT_STR-KB_R_P_SEC sy-vline 
WA_VBSTAT_STR-BYTES_WRIT sy-vline 
WA_VBSTAT_STR-BYTE_W_MIN sy-vline 
WA_VBSTAT_STR-BYTE_W_AVG sy-vline 
WA_VBSTAT_STR-BYTE_W_MAX sy-vline 
WA_VBSTAT_STR-KB_W_P_SEC sy-vline 
WA_VBSTAT_STR-READ_TIME sy-vline 
WA_VBSTAT_STR-READ_T_MIN sy-vline 
WA_VBSTAT_STR-READ_T_AVG sy-vline 
WA_VBSTAT_STR-READ_T_MAX sy-vline 
WA_VBSTAT_STR-WRIT_TIME sy-vline 
WA_VBSTAT_STR-WRIT_T_MIN sy-vline 
WA_VBSTAT_STR-WRIT_T_AVG sy-vline 
WA_VBSTAT_STR-WRIT_T_MAX sy-vline 
WA_VBSTAT_STR-UPD_TIME sy-vline 
WA_VBSTAT_STR-UPD_T_MIN sy-vline 
WA_VBSTAT_STR-UPD_T_AVG sy-vline 
WA_VBSTAT_STR-UPD_T_MAX sy-vline 
WA_VBSTAT_STR-COM_TIME sy-vline 
WA_VBSTAT_STR-COM_T_MIN sy-vline 
WA_VBSTAT_STR-COM_T_AVG sy-vline 
WA_VBSTAT_STR-COM_T_MAX sy-vline 
WA_VBSTAT_STR-DEL_TIME sy-vline 
WA_VBSTAT_STR-DEL_T_MIN sy-vline 
WA_VBSTAT_STR-DEL_T_AVG sy-vline 
WA_VBSTAT_STR-DEL_T_MAX sy-vline 
WA_VBSTAT_STR-PROC_TIME sy-vline 
WA_VBSTAT_STR-PROC_T_MIN sy-vline 
WA_VBSTAT_STR-PROC_T_AVG sy-vline 
WA_VBSTAT_STR-PROC_T_MAX sy-vline 
WA_VBSTAT_STR-PRO2_TIME sy-vline 
WA_VBSTAT_STR-PRO2_T_MIN sy-vline 
WA_VBSTAT_STR-PRO2_T_AVG sy-vline 
WA_VBSTAT_STR-PRO2_T_MAX sy-vline 
WA_VBSTAT_STR-READS sy-vline 
WA_VBSTAT_STR-WRITES sy-vline 
WA_VBSTAT_STR-UPDATES sy-vline 
WA_VBSTAT_STR-COMMITS sy-vline 
WA_VBSTAT_STR-DELETES sy-vline      INTO ld_text SEPARATED BY SPACE.

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