ABAP Select data from SAP table PTRV_UTIL_FIELD_CONTROL 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 PTRV_UTIL_FIELD_CONTROL 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 PTRV_UTIL_FIELD_CONTROL. 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 PTRV_UTIL_FIELD_CONTROL 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_PTRV_UTIL_FIELD_CONTROL TYPE STANDARD TABLE OF PTRV_UTIL_FIELD_CONTROL,
      WA_PTRV_UTIL_FIELD_CONTROL TYPE PTRV_UTIL_FIELD_CONTROL,
      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: <PTRV_UTIL_FIELD_CONTROL> TYPE PTRV_UTIL_FIELD_CONTROL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_UTIL_FIELD_CONTROL
*  INTO TABLE @DATA(IT_PTRV_UTIL_FIELD_CONTROL2).
*--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_PTRV_UTIL_FIELD_CONTROL INDEX 1 INTO DATA(WA_PTRV_UTIL_FIELD_CONTROL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRV_UTIL_FIELD_CONTROL>-MANDT = 1.
<PTRV_UTIL_FIELD_CONTROL>-SPRAS = 1.
<PTRV_UTIL_FIELD_CONTROL>-MOREI = 1.
<PTRV_UTIL_FIELD_CONTROL>-PROG = 1.
<PTRV_UTIL_FIELD_CONTROL>-SCHEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_UTIL_FIELD_CONTROL-TRIPF, sy-vline,
  WA_PTRV_UTIL_FIELD_CONTROL-TRNR, sy-vline,
  WA_PTRV_UTIL_FIELD_CONTROL-ATRNR, sy-vline,
  WA_PTRV_UTIL_FIELD_CONTROL-KEYNAME, sy-vline,
  WA_PTRV_UTIL_FIELD_CONTROL-TABNAME, sy-vline,
  WA_PTRV_UTIL_FIELD_CONTROL-FIELDNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_UTIL_FIELD_CONTROL 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_PTRV_UTIL_FIELD_CONTROL 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_PTRV_UTIL_FIELD_CONTROL INTO WA_PTRV_UTIL_FIELD_CONTROL.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PTRV_UTIL_FIELD_CONTROL-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTRV_UTIL_FIELD_CONTROL-SPRAS.
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_PTRV_UTIL_FIELD_CONTROL_STR, 
MANDT TYPE STRING,
SPRAS TYPE STRING,
MOREI TYPE STRING,
PROG TYPE STRING,
SCHEM TYPE STRING,
TRIPF TYPE STRING,
TRNR TYPE STRING,
ATRNR TYPE STRING,
KEYNAME TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
FNAME TYPE STRING,
VISIBLE TYPE STRING,
INPUT TYPE STRING,
REQUIRED TYPE STRING,
ALTERNATE_IDENTIFIER TYPE STRING,
TOOLTIP TYPE STRING,
FIELD_DESCRIPTION TYPE STRING,
DEFAULT_VALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRV_UTIL_FIELD_CONTROL_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_PTRV_UTIL_FIELD_CONTROL_STR-MANDT sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-SPRAS sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-MOREI sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-PROG sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-SCHEM sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-TRIPF sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-TRNR sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-ATRNR sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-KEYNAME sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-TABNAME sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-FIELDNAME sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-FNAME sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-VISIBLE sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-INPUT sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-REQUIRED sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-ALTERNATE_IDENTIFIER sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-TOOLTIP sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-FIELD_DESCRIPTION sy-vline 
WA_PTRV_UTIL_FIELD_CONTROL_STR-DEFAULT_VALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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