ABAP Select data from SAP table /ACCGO/APP_S_NET_OVR_DET_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/APP_S_NET_OVR_DET_ALV
*  INTO TABLE @DATA(IT_/ACCGO/APP_S_NET_OVR_DET_ALV2).
*--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_/ACCGO/APP_S_NET_OVR_DET_ALV INDEX 1 INTO DATA(WA_/ACCGO/APP_S_NET_OVR_DET_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/APP_S_NET_OVR_DET_ALV>-PRICINGKEY = 1.
</ACCGO/APP_S_NET_OVR_DET_ALV>-PHYSICALCOMMODITY = 1.
</ACCGO/APP_S_NET_OVR_DET_ALV>-MATERIAL = 1.
</ACCGO/APP_S_NET_OVR_DET_ALV>-COMPANYCODE = 1.
</ACCGO/APP_S_NET_OVR_DET_ALV>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/APP_S_NET_OVR_DET_ALV-STORAGELOCATION, sy-vline,
  WA_/ACCGO/APP_S_NET_OVR_DET_ALV-COMMODITYQUANTITYINBASEUNIT, sy-vline,
  WA_/ACCGO/APP_S_NET_OVR_DET_ALV-MATERIALBASEUNIT, sy-vline,
  WA_/ACCGO/APP_S_NET_OVR_DET_ALV-COMMODITYEXPOSUREQUANTITY, sy-vline,
  WA_/ACCGO/APP_S_NET_OVR_DET_ALV-COMMODITYEXPOSUREUNIT, sy-vline,
  WA_/ACCGO/APP_S_NET_OVR_DET_ALV-NETEPOSUREQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/APP_S_NET_OVR_DET_ALV 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_/ACCGO/APP_S_NET_OVR_DET_ALV 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_/ACCGO/APP_S_NET_OVR_DET_ALV INTO WA_/ACCGO/APP_S_NET_OVR_DET_ALV.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/APP_S_NET_OVR_DET_ALV-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/APP_S_NET_OVR_DET_ALV-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/APP_S_NET_OVR_DET_ALV-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/APP_S_NET_OVR_DET_ALV-MATERIALBASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMMODITYEXPOSUREUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/APP_S_NET_OVR_DET_ALV-COMMODITYEXPOSUREUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/APP_S_NET_OVR_DET_ALV-COMMODITYEXPOSUREUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field NETEPOSUREQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/APP_S_NET_OVR_DET_ALV-NETEPOSUREQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/APP_S_NET_OVR_DET_ALV-NETEPOSUREQUANTITYUNIT.
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_/ACCGO/APP_S_NET_OVR_DET_ALV_STR, 
PRICINGKEY TYPE STRING,
PHYSICALCOMMODITY TYPE STRING,
MATERIAL TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
COMMODITYQUANTITYINBASEUNIT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
COMMODITYEXPOSUREQUANTITY TYPE STRING,
COMMODITYEXPOSUREUNIT TYPE STRING,
NETEPOSUREQUANTITY TYPE STRING,
NETEPOSUREQUANTITYUNIT TYPE STRING,
APPLICATIONGUID TYPE STRING,
APPLICATIONGUIDVERSION TYPE STRING,
SCHEDULEID TYPE STRING,
SCHEDULEIDVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/APP_S_NET_OVR_DET_ALV_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_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-PRICINGKEY sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-PHYSICALCOMMODITY sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-MATERIAL sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-COMPANYCODE sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-PLANT sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-STORAGELOCATION sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-COMMODITYQUANTITYINBASEUNIT sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-MATERIALBASEUNIT sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-COMMODITYEXPOSUREQUANTITY sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-COMMODITYEXPOSUREUNIT sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-NETEPOSUREQUANTITY sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-NETEPOSUREQUANTITYUNIT sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-APPLICATIONGUID sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-APPLICATIONGUIDVERSION sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-SCHEDULEID sy-vline 
WA_/ACCGO/APP_S_NET_OVR_DET_ALV_STR-SCHEDULEIDVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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