ABAP Select data from SAP table /ACCGO/T_NPELOTS 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 /ACCGO/T_NPELOTS 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/T_NPELOTS. 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/T_NPELOTS 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/T_NPELOTS TYPE STANDARD TABLE OF /ACCGO/T_NPELOTS,
      WA_/ACCGO/T_NPELOTS TYPE /ACCGO/T_NPELOTS,
      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/T_NPELOTS> TYPE /ACCGO/T_NPELOTS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/T_NPELOTS
*  INTO TABLE @DATA(IT_/ACCGO/T_NPELOTS2).
*--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/T_NPELOTS INDEX 1 INTO DATA(WA_/ACCGO/T_NPELOTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/T_NPELOTS>-MANDT = 1.
</ACCGO/T_NPELOTS>-TRADINGCONTRACTNUMBER = 1.
</ACCGO/T_NPELOTS>-TRADINGCONTRACTITEM = 1.
</ACCGO/T_NPELOTS>-ACMPRICINGCONDITIONTYPE = 1.
</ACCGO/T_NPELOTS>-PRICINGCONDITIONTERM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/T_NPELOTS-TERMQUANTITY, sy-vline,
  WA_/ACCGO/T_NPELOTS-TERMUNITOFMEASURE, sy-vline,
  WA_/ACCGO/T_NPELOTS-ACMPRCGCNDNFORMULARATECRCY, sy-vline,
  WA_/ACCGO/T_NPELOTS-ACMPRCGCNDNFORMULARATEQTY, sy-vline,
  WA_/ACCGO/T_NPELOTS-ACMPRCGCNDNFORMULARATEQTYUNIT, sy-vline,
  WA_/ACCGO/T_NPELOTS-PRCGCNDNTRADINGCONTRCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/T_NPELOTS 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/T_NPELOTS 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/T_NPELOTS INTO WA_/ACCGO/T_NPELOTS.


*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 TRADINGCONTRACTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_NPELOTS-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_NPELOTS-TRADINGCONTRACTNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field DERIVATIVECONTRACTMATURITYCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_NPELOTS-DERIVATIVECONTRACTMATURITYCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_NPELOTS-DERIVATIVECONTRACTMATURITYCODE.
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/T_NPELOTS_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
ACMPRICINGCONDITIONTYPE TYPE STRING,
PRICINGCONDITIONTERM TYPE STRING,
TERMQUANTITY TYPE STRING,
TERMUNITOFMEASURE TYPE STRING,
ACMPRCGCNDNFORMULARATECRCY TYPE STRING,
ACMPRCGCNDNFORMULARATEQTY TYPE STRING,
ACMPRCGCNDNFORMULARATEQTYUNIT TYPE STRING,
PRCGCNDNTRADINGCONTRCURRENCY TYPE STRING,
BASISID TYPE STRING,
PRICEQUOTATIONTYPE TYPE STRING,
PRICINGCONDITIONQUOTATIONKEY TYPE STRING,
DERIVATIVECONTRSPECIFICATION TYPE STRING,
ACMPRICINGMARKETIDENTIFIERCODE TYPE STRING,
MATURITYKEYDATE TYPE STRING,
DERIVATIVECONTRACTMATURITYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/T_NPELOTS_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/T_NPELOTS_STR-MANDT sy-vline 
WA_/ACCGO/T_NPELOTS_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_/ACCGO/T_NPELOTS_STR-TRADINGCONTRACTITEM sy-vline 
WA_/ACCGO/T_NPELOTS_STR-ACMPRICINGCONDITIONTYPE sy-vline 
WA_/ACCGO/T_NPELOTS_STR-PRICINGCONDITIONTERM sy-vline 
WA_/ACCGO/T_NPELOTS_STR-TERMQUANTITY sy-vline 
WA_/ACCGO/T_NPELOTS_STR-TERMUNITOFMEASURE sy-vline 
WA_/ACCGO/T_NPELOTS_STR-ACMPRCGCNDNFORMULARATECRCY sy-vline 
WA_/ACCGO/T_NPELOTS_STR-ACMPRCGCNDNFORMULARATEQTY sy-vline 
WA_/ACCGO/T_NPELOTS_STR-ACMPRCGCNDNFORMULARATEQTYUNIT sy-vline 
WA_/ACCGO/T_NPELOTS_STR-PRCGCNDNTRADINGCONTRCURRENCY sy-vline 
WA_/ACCGO/T_NPELOTS_STR-BASISID sy-vline 
WA_/ACCGO/T_NPELOTS_STR-PRICEQUOTATIONTYPE sy-vline 
WA_/ACCGO/T_NPELOTS_STR-PRICINGCONDITIONQUOTATIONKEY sy-vline 
WA_/ACCGO/T_NPELOTS_STR-DERIVATIVECONTRSPECIFICATION sy-vline 
WA_/ACCGO/T_NPELOTS_STR-ACMPRICINGMARKETIDENTIFIERCODE sy-vline 
WA_/ACCGO/T_NPELOTS_STR-MATURITYKEYDATE sy-vline 
WA_/ACCGO/T_NPELOTS_STR-DERIVATIVECONTRACTMATURITYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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