ABAP Select data from SAP table PERFBTCST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PERFBTCST
*  INTO TABLE @DATA(IT_PERFBTCST2).
*--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_PERFBTCST INDEX 1 INTO DATA(WA_PERFBTCST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PERFBTCST>-JOBNAME = 1.
<PERFBTCST>-JOBCOUNT = 1.
<PERFBTCST>-SDLSTRTDT = 1.
<PERFBTCST>-SDLSTRTTM = 1.
<PERFBTCST>-BTCSYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PERFBTCST-SDLUNAME, sy-vline,
  WA_PERFBTCST-LASTCHDATE, sy-vline,
  WA_PERFBTCST-LASTCHTIME, sy-vline,
  WA_PERFBTCST-LASTCHNAME, sy-vline,
  WA_PERFBTCST-STRTDATE, sy-vline,
  WA_PERFBTCST-STRTTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PERFBTCST 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_PERFBTCST 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_PERFBTCST INTO WA_PERFBTCST.


*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_PERFBTCST_STR, 
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
SDLSTRTDT TYPE STRING,
SDLSTRTTM TYPE STRING,
BTCSYSTEM TYPE STRING,
SDLUNAME TYPE STRING,
LASTCHDATE TYPE STRING,
LASTCHTIME TYPE STRING,
LASTCHNAME TYPE STRING,
STRTDATE TYPE STRING,
STRTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
PERIODIC TYPE STRING,
STATUS TYPE STRING,
WPNUMBER TYPE STRING,
WPPROCID TYPE STRING,
BTCSYSREAX TYPE STRING,
JOBCLASS TYPE STRING,
EXECSERVE TYPE STRING,
DURATION TYPE STRING,
DELAY TYPE STRING,
AVGTIMSEC TYPE STRING,
DIFFTIMSEC TYPE STRING,
SELFLAG TYPE STRING,
CNTOFJOBS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PERFBTCST_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_PERFBTCST_STR-JOBNAME sy-vline 
WA_PERFBTCST_STR-JOBCOUNT sy-vline 
WA_PERFBTCST_STR-SDLSTRTDT sy-vline 
WA_PERFBTCST_STR-SDLSTRTTM sy-vline 
WA_PERFBTCST_STR-BTCSYSTEM sy-vline 
WA_PERFBTCST_STR-SDLUNAME sy-vline 
WA_PERFBTCST_STR-LASTCHDATE sy-vline 
WA_PERFBTCST_STR-LASTCHTIME sy-vline 
WA_PERFBTCST_STR-LASTCHNAME sy-vline 
WA_PERFBTCST_STR-STRTDATE sy-vline 
WA_PERFBTCST_STR-STRTTIME sy-vline 
WA_PERFBTCST_STR-ENDDATE sy-vline 
WA_PERFBTCST_STR-ENDTIME sy-vline 
WA_PERFBTCST_STR-PERIODIC sy-vline 
WA_PERFBTCST_STR-STATUS sy-vline 
WA_PERFBTCST_STR-WPNUMBER sy-vline 
WA_PERFBTCST_STR-WPPROCID sy-vline 
WA_PERFBTCST_STR-BTCSYSREAX sy-vline 
WA_PERFBTCST_STR-JOBCLASS sy-vline 
WA_PERFBTCST_STR-EXECSERVE sy-vline 
WA_PERFBTCST_STR-DURATION sy-vline 
WA_PERFBTCST_STR-DELAY sy-vline 
WA_PERFBTCST_STR-AVGTIMSEC sy-vline 
WA_PERFBTCST_STR-DIFFTIMSEC sy-vline 
WA_PERFBTCST_STR-SELFLAG sy-vline 
WA_PERFBTCST_STR-CNTOFJOBS sy-vline      INTO ld_text SEPARATED BY SPACE.

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