ABAP Select data from SAP table CTE_V_NETWORK 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 CTE_V_NETWORK 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 CTE_V_NETWORK. 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 CTE_V_NETWORK 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_CTE_V_NETWORK TYPE STANDARD TABLE OF CTE_V_NETWORK,
      WA_CTE_V_NETWORK TYPE CTE_V_NETWORK,
      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: <CTE_V_NETWORK> TYPE CTE_V_NETWORK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTE_V_NETWORK
*  INTO TABLE @DATA(IT_CTE_V_NETWORK2).
*--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_CTE_V_NETWORK INDEX 1 INTO DATA(WA_CTE_V_NETWORK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTE_V_NETWORK>-MANDT = 1.
<CTE_V_NETWORK>-AUFNR = 1.
<CTE_V_NETWORK>-BUKRS = 1.
<CTE_V_NETWORK>-GSBER = 1.
<CTE_V_NETWORK>-KOKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTE_V_NETWORK-OBJNR, sy-vline,
  WA_CTE_V_NETWORK-KTEXT, sy-vline,
  WA_CTE_V_NETWORK-PSPEL, sy-vline,
  WA_CTE_V_NETWORK-LOEKZ, sy-vline,
  WA_CTE_V_NETWORK-PRONR, sy-vline,
  WA_CTE_V_NETWORK-NETZKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTE_V_NETWORK 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_CTE_V_NETWORK 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_CTE_V_NETWORK INTO WA_CTE_V_NETWORK.


*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
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_V_NETWORK-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_V_NETWORK-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CTE_V_NETWORK-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_V_NETWORK-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPD, internal->external for field PRONR
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_CTE_V_NETWORK-PRONR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_V_NETWORK-PRONR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field BUKRS_SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_V_NETWORK-BUKRS_SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_V_NETWORK-BUKRS_SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_V_NETWORK-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_V_NETWORK-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_CTE_V_NETWORK_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
OBJNR TYPE STRING,
KTEXT TYPE STRING,
PSPEL TYPE STRING,
LOEKZ TYPE STRING,
PRONR TYPE STRING,
NETZKONT TYPE STRING,
BEZEI TYPE STRING,
BUKRS_SPRAS TYPE STRING,
BUTXT TYPE STRING,
LAND1 TYPE STRING,
SPRAS TYPE STRING,
LANDX TYPE STRING,
LANDX50 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTE_V_NETWORK_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_CTE_V_NETWORK_STR-MANDT sy-vline 
WA_CTE_V_NETWORK_STR-AUFNR sy-vline 
WA_CTE_V_NETWORK_STR-BUKRS sy-vline 
WA_CTE_V_NETWORK_STR-GSBER sy-vline 
WA_CTE_V_NETWORK_STR-KOKRS sy-vline 
WA_CTE_V_NETWORK_STR-OBJNR sy-vline 
WA_CTE_V_NETWORK_STR-KTEXT sy-vline 
WA_CTE_V_NETWORK_STR-PSPEL sy-vline 
WA_CTE_V_NETWORK_STR-LOEKZ sy-vline 
WA_CTE_V_NETWORK_STR-PRONR sy-vline 
WA_CTE_V_NETWORK_STR-NETZKONT sy-vline 
WA_CTE_V_NETWORK_STR-BEZEI sy-vline 
WA_CTE_V_NETWORK_STR-BUKRS_SPRAS sy-vline 
WA_CTE_V_NETWORK_STR-BUTXT sy-vline 
WA_CTE_V_NETWORK_STR-LAND1 sy-vline 
WA_CTE_V_NETWORK_STR-SPRAS sy-vline 
WA_CTE_V_NETWORK_STR-LANDX sy-vline 
WA_CTE_V_NETWORK_STR-LANDX50 sy-vline      INTO ld_text SEPARATED BY SPACE.

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