ABAP Select data from SAP table CONTROL_NET_OVR_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CONTROL_NET_OVR_ST
*  INTO TABLE @DATA(IT_CONTROL_NET_OVR_ST2).
*--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_CONTROL_NET_OVR_ST INDEX 1 INTO DATA(WA_CONTROL_NET_OVR_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CONTROL_NET_OVR_ST>-AUFNR_NET = 1.
<CONTROL_NET_OVR_ST>-DESCRIPTION_NET = 1.
<CONTROL_NET_OVR_ST>-AUART_NET = 1.
<CONTROL_NET_OVR_ST>-ERNAM_NET = 1.
<CONTROL_NET_OVR_ST>-ERDAT_NET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CONTROL_NET_OVR_ST-AENAM_NET, sy-vline,
  WA_CONTROL_NET_OVR_ST-AEDAT_NET, sy-vline,
  WA_CONTROL_NET_OVR_ST-KALSM_NET, sy-vline,
  WA_CONTROL_NET_OVR_ST-ZSCHL_NET, sy-vline,
  WA_CONTROL_NET_OVR_ST-APRIO_NET, sy-vline,
  WA_CONTROL_NET_OVR_ST-KLVARP_NET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CONTROL_NET_OVR_ST 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_CONTROL_NET_OVR_ST 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_CONTROL_NET_OVR_ST INTO WA_CONTROL_NET_OVR_ST.


*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 ALPHA, internal->external for field AUFNR_NET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CONTROL_NET_OVR_ST-AUFNR_NET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CONTROL_NET_OVR_ST-AUFNR_NET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SCOPE, internal->external for field SCOPE_NET
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_CONTROL_NET_OVR_ST-SCOPE_NET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CONTROL_NET_OVR_ST-SCOPE_NET.
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_CONTROL_NET_OVR_ST_STR, 
AUFNR_NET TYPE STRING,
DESCRIPTION_NET TYPE STRING,
AUART_NET TYPE STRING,
ERNAM_NET TYPE STRING,
ERDAT_NET TYPE STRING,
AENAM_NET TYPE STRING,
AEDAT_NET TYPE STRING,
KALSM_NET TYPE STRING,
ZSCHL_NET TYPE STRING,
APRIO_NET TYPE STRING,
KLVARP_NET TYPE STRING,
KLVARI_NET TYPE STRING,
NAUTERM_NET TYPE STRING,
NW_PLANCOST_NET TYPE STRING,
BREAKS_NET TYPE STRING,
KBED_NET TYPE STRING,
KKALKR_NET TYPE STRING,
ADPSP_NET TYPE STRING,
PROFID_NET TYPE STRING,
WERKS_NET TYPE STRING,
AUFKT_NET TYPE STRING,
TXJCD_NET TYPE STRING,
SCOPE_NET TYPE STRING,
AUDISP_NET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CONTROL_NET_OVR_ST_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_CONTROL_NET_OVR_ST_STR-AUFNR_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-DESCRIPTION_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-AUART_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-ERNAM_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-ERDAT_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-AENAM_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-AEDAT_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-KALSM_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-ZSCHL_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-APRIO_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-KLVARP_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-KLVARI_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-NAUTERM_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-NW_PLANCOST_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-BREAKS_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-KBED_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-KKALKR_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-ADPSP_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-PROFID_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-WERKS_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-AUFKT_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-TXJCD_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-SCOPE_NET sy-vline 
WA_CONTROL_NET_OVR_ST_STR-AUDISP_NET sy-vline      INTO ld_text SEPARATED BY SPACE.

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