ABAP Select data from SAP table ISCACREDITWORTHINESSHISTORYT_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCACREDITWORTHINESSHISTORYT_D
*  INTO TABLE @DATA(IT_ISCACREDITWORTHINESSHISTORYT_D2).
*--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_ISCACREDITWORTHINESSHISTORYT_D INDEX 1 INTO DATA(WA_ISCACREDITWORTHINESSHISTORYT_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCACREDITWORTHINESSHISTORYT_D>-BUSINESSPARTNER = 1.
<ISCACREDITWORTHINESSHISTORYT_D>-CALENDARYEAR = 1.
<ISCACREDITWORTHINESSHISTORYT_D>-BUSINESSPARTNERFULLNAME = 1.
<ISCACREDITWORTHINESSHISTORYT_D>-COMPLETEADDRESS = 1.
<ISCACREDITWORTHINESSHISTORYT_D>-ADDRESSLINE1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCACREDITWORTHINESSHISTORYT_D-ADDRESSLINE2, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYT_D-ADDRESSLINE3, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYT_D-POSTALCODE, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYT_D-CITYNAME, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYT_D-CACREDITWORTHINESSJANUARYVALUE, sy-vline,
  WA_ISCACREDITWORTHINESSHISTORYT_D-CACREDITWORTHINESSFEBRUARYVAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCACREDITWORTHINESSHISTORYT_D 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_ISCACREDITWORTHINESSHISTORYT_D 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_ISCACREDITWORTHINESSHISTORYT_D INTO WA_ISCACREDITWORTHINESSHISTORYT_D.


*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_ISCACREDITWORTHINESSHISTORYT_D-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCACREDITWORTHINESSHISTORYT_D-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISCACREDITWORTHINESSHISTORYT_D-BUSINESSPARTNERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCACREDITWORTHINESSHISTORYT_D-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_ISCACREDITWORTHINESSHISTORYT_D_STR, 
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_ISCACREDITWORTHINESSHISTORYT_D_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_ISCACREDITWORTHINESSHISTORYT_D_STR-BUSINESSPARTNER sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CALENDARYEAR sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-COMPLETEADDRESS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-ADDRESSLINE1 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-ADDRESSLINE2 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-ADDRESSLINE3 sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-POSTALCODE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CITYNAME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSJANUARYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSFEBRUARYVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSMARCHVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSAPRILVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSMAYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSJUNEVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSJULYVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSAUGUSTVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSSEPTEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSOCTOBERVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSNOVEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSDECEMBERVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAMANUALCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CANUMBEROFCREDITWORTHINESSITMS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAFROZENCREDITWORTHINESSVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAFROZENCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAUNFROZENCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAEXTERNALCREDITWORTHINESSVAL sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAEXTERNALCREDITWORTHINESSDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACRDTWRTHNSSHASTOBEREPLICATED sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWRTHNSSREPLICATIONDATE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSISFROZEN sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-BUSINESSPARTNERFOREDIT sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CAMANUALCREDITWORTHINESSVALUE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-CACREDITWORTHINESSFACTORINPCT sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-HASACTIVEENTITY sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISCACREDITWORTHINESSHISTORYT_D_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.