ABAP Select data from SAP table ISCACREDITWORTHINESSHISTORYTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCACREDITWORTHINESSHISTORYTP
*  INTO TABLE @DATA(IT_ISCACREDITWORTHINESSHISTORYTP2).
*--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_ISCACREDITWORTHINESSHISTORYTP INDEX 1 INTO DATA(WA_ISCACREDITWORTHINESSHISTORYTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCACREDITWORTHINESSHISTORYTP>-KEY = 1.
<ISCACREDITWORTHINESSHISTORYTP>-PARENT_KEY = 1.
<ISCACREDITWORTHINESSHISTORYTP>-ROOT_KEY = 1.
<ISCACREDITWORTHINESSHISTORYTP>-BUSINESSPARTNER = 1.
<ISCACREDITWORTHINESSHISTORYTP>-CALENDARYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCACREDITWORTHINESSHISTORYTP-BUSINESSPARTNERFULLNAME, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYTP-COMPLETEADDRESS, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYTP-ADDRESSLINE1, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYTP-ADDRESSLINE2, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYTP-ADDRESSLINE3, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYTP-POSTALCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCACREDITWORTHINESSHISTORYTP 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_ISCACREDITWORTHINESSHISTORYTP 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_ISCACREDITWORTHINESSHISTORYTP INTO WA_ISCACREDITWORTHINESSHISTORYTP.


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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISCACREDITWORTHINESSHISTORYTP-BUSINESSPARTNERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCACREDITWORTHINESSHISTORYTP-BUSINESSPARTNERFOREDIT.
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_ISCACREDITWORTHINESSHISTORYTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CALENDARYEAR TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
COMPLETEADDRESS TYPE STRING,
ADDRESSLINE1 TYPE STRING,
ADDRESSLINE2 TYPE STRING,
ADDRESSLINE3 TYPE STRING,
POSTALCODE TYPE STRING,
CITYNAME TYPE STRING,
CACREDITWORTHINESSJANUARYVALUE TYPE STRING,
CACREDITWORTHINESSFEBRUARYVAL TYPE STRING,
CACREDITWORTHINESSMARCHVALUE TYPE STRING,
CACREDITWORTHINESSAPRILVALUE TYPE STRING,
CACREDITWORTHINESSMAYVALUE TYPE STRING,
CACREDITWORTHINESSJUNEVALUE TYPE STRING,
CACREDITWORTHINESSJULYVALUE TYPE STRING,
CACREDITWORTHINESSAUGUSTVALUE TYPE STRING,
CACREDITWORTHINESSSEPTEMBERVAL TYPE STRING,
CACREDITWORTHINESSOCTOBERVALUE TYPE STRING,
CACREDITWORTHINESSNOVEMBERVAL TYPE STRING,
CACREDITWORTHINESSDECEMBERVAL TYPE STRING,
CAMANUALCREDITWORTHINESSDATE TYPE STRING,
CANUMBEROFCREDITWORTHINESSITMS TYPE STRING,
CAFROZENCREDITWORTHINESSVALUE TYPE STRING,
CAFROZENCREDITWORTHINESSDATE TYPE STRING,
CAUNFROZENCREDITWORTHINESSDATE TYPE STRING,
CAEXTERNALCREDITWORTHINESSVAL TYPE STRING,
CAEXTERNALCREDITWORTHINESSDATE TYPE STRING,
CACRDTWRTHNSSHASTOBEREPLICATED TYPE STRING,
CACREDITWRTHNSSREPLICATIONDATE TYPE STRING,
CACREDITWORTHINESSISFROZEN TYPE STRING,
BUSINESSPARTNERFOREDIT TYPE STRING,
CAMANUALCREDITWORTHINESSVALUE TYPE STRING,
CACREDITWORTHINESSFACTORINPCT TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISCACREDITWORTHINESSHISTORYTP_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_ISCACREDITWORTHINESSHISTORYTP_STR-KEY sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-PARENT_KEY sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-ROOT_KEY sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-BUSINESSPARTNER sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CALENDARYEAR sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-COMPLETEADDRESS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-ADDRESSLINE1 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-ADDRESSLINE2 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-ADDRESSLINE3 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-POSTALCODE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CITYNAME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSJANUARYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSFEBRUARYVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSMARCHVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSAPRILVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSMAYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSJUNEVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSJULYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSAUGUSTVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSSEPTEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSOCTOBERVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSNOVEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSDECEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAMANUALCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CANUMBEROFCREDITWORTHINESSITMS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAFROZENCREDITWORTHINESSVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAFROZENCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAUNFROZENCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAEXTERNALCREDITWORTHINESSVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAEXTERNALCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACRDTWRTHNSSHASTOBEREPLICATED sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWRTHNSSREPLICATIONDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSISFROZEN sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-BUSINESSPARTNERFOREDIT sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CAMANUALCREDITWORTHINESSVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-CACREDITWORTHINESSFACTORINPCT sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-HASACTIVEENTITY sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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