ABAP Select data from SAP table /BI0/MTCTPRCSVAR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BI0/MTCTPRCSVAR 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 /BI0/MTCTPRCSVAR. 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 /BI0/MTCTPRCSVAR 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_/BI0/MTCTPRCSVAR TYPE STANDARD TABLE OF /BI0/MTCTPRCSVAR,
      WA_/BI0/MTCTPRCSVAR TYPE /BI0/MTCTPRCSVAR,
      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: </BI0/MTCTPRCSVAR> TYPE /BI0/MTCTPRCSVAR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BI0/MTCTPRCSVAR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BI0/MTCTPRCSVAR
  INTO TABLE IT_/BI0/MTCTPRCSVAR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BI0/MTCTPRCSVAR
*  INTO TABLE @DATA(IT_/BI0/MTCTPRCSVAR2).
*--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_/BI0/MTCTPRCSVAR INDEX 1 INTO DATA(WA_/BI0/MTCTPRCSVAR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BI0/MTCTPRCSVAR ASSIGNING </BI0/MTCTPRCSVAR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BI0/MTCTPRCSVAR>-TCTSYSID = 1.
</BI0/MTCTPRCSVAR>-TCTOBJVERS = 1.
</BI0/MTCTPRCSVAR>-TCTPRCSTYP = 1.
</BI0/MTCTPRCSVAR>-TCTPRCSVAR = 1.
</BI0/MTCTPRCSVAR>-OBJVERS = 1.

ENDLOOP.

LOOP AT IT_/BI0/MTCTPRCSVAR INTO WA_/BI0/MTCTPRCSVAR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BI0/MTCTPRCSVAR-CHANGED, sy-vline,
  WA_/BI0/MTCTPRCSVAR-TCTCONTREL, sy-vline,
  WA_/BI0/MTCTPRCSVAR-TCTOWNER, sy-vline,
  WA_/BI0/MTCTPRCSVAR-TCTLSTCHG, sy-vline,
  WA_/BI0/MTCTPRCSVAR-TCTTSTPNM, sy-vline,
  WA_/BI0/MTCTPRCSVAR-TCTBCTSTMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BI0/MTCTPRCSVAR 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_/BI0/MTCTPRCSVAR 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_/BI0/MTCTPRCSVAR INTO WA_/BI0/MTCTPRCSVAR.


*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.

*Conversion exit TIMES, internal->external for field TCTLSTCHG
CALL FUNCTION 'CONVERSION_EXIT_TIMES_OUTPUT'
  EXPORTING
    input =                      WA_/BI0/MTCTPRCSVAR-TCTLSTCHG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BI0/MTCTPRCSVAR-TCTLSTCHG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TIMES, internal->external for field TCTBCTSTMP
CALL FUNCTION 'CONVERSION_EXIT_TIMES_OUTPUT'
  EXPORTING
    input =                      WA_/BI0/MTCTPRCSVAR-TCTBCTSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BI0/MTCTPRCSVAR-TCTBCTSTMP.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/BI0/MTCTPRCSVAR_STR, 
TCTSYSID TYPE STRING,
TCTOBJVERS TYPE STRING,
TCTPRCSTYP TYPE STRING,
TCTPRCSVAR TYPE STRING,
OBJVERS TYPE STRING,
CHANGED TYPE STRING,
TCTCONTREL TYPE STRING,
TCTOWNER TYPE STRING,
TCTLSTCHG TYPE STRING,
TCTTSTPNM TYPE STRING,
TCTBCTSTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BI0/MTCTPRCSVAR_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_/BI0/MTCTPRCSVAR_STR-TCTSYSID sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTOBJVERS sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTPRCSTYP sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTPRCSVAR sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-OBJVERS sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-CHANGED sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTCONTREL sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTOWNER sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTLSTCHG sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTTSTPNM sy-vline 
WA_/BI0/MTCTPRCSVAR_STR-TCTBCTSTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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