ABAP Select data from SAP table ISAFTNOGLSUPPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISAFTNOGLSUPPL
*  INTO TABLE @DATA(IT_ISAFTNOGLSUPPL2).
*--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_ISAFTNOGLSUPPL INDEX 1 INTO DATA(WA_ISAFTNOGLSUPPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISAFTNOGLSUPPL>-MANDT = 1.
<ISAFTNOGLSUPPL>-COMPANYCODE = 1.
<ISAFTNOGLSUPPL>-CREDITOR = 1.
<ISAFTNOGLSUPPL>-LEDGER = 1.
<ISAFTNOGLSUPPL>-FISCALYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISAFTNOGLSUPPL-SUPPLIER, sy-vline,
  WA_ISAFTNOGLSUPPL-CUSTOMERVATREGISTRATION, sy-vline,
  WA_ISAFTNOGLSUPPL-TAXNUMBER1, sy-vline,
  WA_ISAFTNOGLSUPPL-TAXNUMBER2, sy-vline,
  WA_ISAFTNOGLSUPPL-GLACCOUNT, sy-vline,
  WA_ISAFTNOGLSUPPL-COMPANYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISAFTNOGLSUPPL 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_ISAFTNOGLSUPPL 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_ISAFTNOGLSUPPL INTO WA_ISAFTNOGLSUPPL.


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

*Conversion exit ALPHA, internal->external for field LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISAFTNOGLSUPPL-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAFTNOGLSUPPL-LEDGER.
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_ISAFTNOGLSUPPL_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
CREDITOR TYPE STRING,
LEDGER TYPE STRING,
FISCALYEAR TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMERVATREGISTRATION TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER2 TYPE STRING,
GLACCOUNT TYPE STRING,
COMPANYNAME TYPE STRING,
CITYNAME TYPE STRING,
STREETNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
POSTALCODE TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
POBOX TYPE STRING,
POBOXPOSTALCODE TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
DEBITSTARTINGBALAMTINCCCRCY TYPE STRING,
CREDITSTARTINGBALAMTINCCCRCY TYPE STRING,
DEBITENDINGBALAMTINCCCRCY TYPE STRING,
CREDITENDINGBALAMTINCCCRCY TYPE STRING,
ISONETIMEACCOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISAFTNOGLSUPPL_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_ISAFTNOGLSUPPL_STR-MANDT sy-vline 
WA_ISAFTNOGLSUPPL_STR-COMPANYCODE sy-vline 
WA_ISAFTNOGLSUPPL_STR-CREDITOR sy-vline 
WA_ISAFTNOGLSUPPL_STR-LEDGER sy-vline 
WA_ISAFTNOGLSUPPL_STR-FISCALYEAR sy-vline 
WA_ISAFTNOGLSUPPL_STR-SUPPLIER sy-vline 
WA_ISAFTNOGLSUPPL_STR-CUSTOMERVATREGISTRATION sy-vline 
WA_ISAFTNOGLSUPPL_STR-TAXNUMBER1 sy-vline 
WA_ISAFTNOGLSUPPL_STR-TAXNUMBER2 sy-vline 
WA_ISAFTNOGLSUPPL_STR-GLACCOUNT sy-vline 
WA_ISAFTNOGLSUPPL_STR-COMPANYNAME sy-vline 
WA_ISAFTNOGLSUPPL_STR-CITYNAME sy-vline 
WA_ISAFTNOGLSUPPL_STR-STREETNAME sy-vline 
WA_ISAFTNOGLSUPPL_STR-HOUSENUMBER sy-vline 
WA_ISAFTNOGLSUPPL_STR-POSTALCODE sy-vline 
WA_ISAFTNOGLSUPPL_STR-REGION sy-vline 
WA_ISAFTNOGLSUPPL_STR-COUNTRY sy-vline 
WA_ISAFTNOGLSUPPL_STR-POBOX sy-vline 
WA_ISAFTNOGLSUPPL_STR-POBOXPOSTALCODE sy-vline 
WA_ISAFTNOGLSUPPL_STR-COMPANYCODECURRENCY sy-vline 
WA_ISAFTNOGLSUPPL_STR-DEBITSTARTINGBALAMTINCCCRCY sy-vline 
WA_ISAFTNOGLSUPPL_STR-CREDITSTARTINGBALAMTINCCCRCY sy-vline 
WA_ISAFTNOGLSUPPL_STR-DEBITENDINGBALAMTINCCCRCY sy-vline 
WA_ISAFTNOGLSUPPL_STR-CREDITENDINGBALAMTINCCCRCY sy-vline 
WA_ISAFTNOGLSUPPL_STR-ISONETIMEACCOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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