ABAP Select data from SAP table ISAFTGENLEDCUST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISAFTGENLEDCUST
*  INTO TABLE @DATA(IT_ISAFTGENLEDCUST2).
*--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_ISAFTGENLEDCUST INDEX 1 INTO DATA(WA_ISAFTGENLEDCUST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISAFTGENLEDCUST>-MANDT = 1.
<ISAFTGENLEDCUST>-SOURCELEDGER = 1.
<ISAFTGENLEDCUST>-COMPANYCODE = 1.
<ISAFTGENLEDCUST>-FISCALYEAR = 1.
<ISAFTGENLEDCUST>-ACCOUNTINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISAFTGENLEDCUST-LEDGERGLLINEITEM, sy-vline,
  WA_ISAFTGENLEDCUST-LEDGER, sy-vline,
  WA_ISAFTGENLEDCUST-CHARTOFACCOUNTS, sy-vline,
  WA_ISAFTGENLEDCUST-GLACCOUNT, sy-vline,
  WA_ISAFTGENLEDCUST-ACCOUNTINGDOCUMENTCATEGORY, sy-vline,
  WA_ISAFTGENLEDCUST-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISAFTGENLEDCUST 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_ISAFTGENLEDCUST 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_ISAFTGENLEDCUST INTO WA_ISAFTGENLEDCUST.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISAFTGENLEDCUST-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAFTGENLEDCUST-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RECONCILIATIONACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISAFTGENLEDCUST-RECONCILIATIONACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAFTGENLEDCUST-RECONCILIATIONACCOUNT.
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_ISAFTGENLEDCUST_STR, 
MANDT TYPE STRING,
SOURCELEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
LEDGER TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNT TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
POSTINGDATE TYPE STRING,
CUSTOMER TYPE STRING,
VATREGISTRATION TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER2 TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
ORGANIZATIONBPNAME2 TYPE STRING,
CITYNAME TYPE STRING,
POSTALCODE TYPE STRING,
COUNTRY TYPE STRING,
ISONETIMEACCOUNT TYPE STRING,
ADDRESSID TYPE STRING,
CUSTOMERNUM TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
STREETNAME TYPE STRING,
STREETPREFIXNAME TYPE STRING,
ADDITIONALSTREETPREFIXNAME TYPE STRING,
STREETSUFFIXNAME TYPE STRING,
ADDITIONALSTREETSUFFIXNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
REGION TYPE STRING,
RECONCILIATIONACCOUNT TYPE STRING,
PARTNERFIRSTNAME TYPE STRING,
PARTNERLASTNAME TYPE STRING,
DELIVOFGOODSDESTCOUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISAFTGENLEDCUST_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_ISAFTGENLEDCUST_STR-MANDT sy-vline 
WA_ISAFTGENLEDCUST_STR-SOURCELEDGER sy-vline 
WA_ISAFTGENLEDCUST_STR-COMPANYCODE sy-vline 
WA_ISAFTGENLEDCUST_STR-FISCALYEAR sy-vline 
WA_ISAFTGENLEDCUST_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_ISAFTGENLEDCUST_STR-LEDGERGLLINEITEM sy-vline 
WA_ISAFTGENLEDCUST_STR-LEDGER sy-vline 
WA_ISAFTGENLEDCUST_STR-CHARTOFACCOUNTS sy-vline 
WA_ISAFTGENLEDCUST_STR-GLACCOUNT sy-vline 
WA_ISAFTGENLEDCUST_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_ISAFTGENLEDCUST_STR-POSTINGDATE sy-vline 
WA_ISAFTGENLEDCUST_STR-CUSTOMER sy-vline 
WA_ISAFTGENLEDCUST_STR-VATREGISTRATION sy-vline 
WA_ISAFTGENLEDCUST_STR-TAXNUMBER1 sy-vline 
WA_ISAFTGENLEDCUST_STR-TAXNUMBER2 sy-vline 
WA_ISAFTGENLEDCUST_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_ISAFTGENLEDCUST_STR-ORGANIZATIONBPNAME2 sy-vline 
WA_ISAFTGENLEDCUST_STR-CITYNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-POSTALCODE sy-vline 
WA_ISAFTGENLEDCUST_STR-COUNTRY sy-vline 
WA_ISAFTGENLEDCUST_STR-ISONETIMEACCOUNT sy-vline 
WA_ISAFTGENLEDCUST_STR-ADDRESSID sy-vline 
WA_ISAFTGENLEDCUST_STR-CUSTOMERNUM sy-vline 
WA_ISAFTGENLEDCUST_STR-AUTHORIZATIONGROUP sy-vline 
WA_ISAFTGENLEDCUST_STR-STREETNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-STREETPREFIXNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-ADDITIONALSTREETPREFIXNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-STREETSUFFIXNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-ADDITIONALSTREETSUFFIXNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-HOUSENUMBER sy-vline 
WA_ISAFTGENLEDCUST_STR-REGION sy-vline 
WA_ISAFTGENLEDCUST_STR-RECONCILIATIONACCOUNT sy-vline 
WA_ISAFTGENLEDCUST_STR-PARTNERFIRSTNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-PARTNERLASTNAME sy-vline 
WA_ISAFTGENLEDCUST_STR-DELIVOFGOODSDESTCOUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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