ABAP Select data from SAP table CRMS4S_CREDIT_CHECK_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4S_CREDIT_CHECK_ITEM 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 CRMS4S_CREDIT_CHECK_ITEM. 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 CRMS4S_CREDIT_CHECK_ITEM 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_CRMS4S_CREDIT_CHECK_ITEM TYPE STANDARD TABLE OF CRMS4S_CREDIT_CHECK_ITEM,
      WA_CRMS4S_CREDIT_CHECK_ITEM TYPE CRMS4S_CREDIT_CHECK_ITEM,
      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: <CRMS4S_CREDIT_CHECK_ITEM> TYPE CRMS4S_CREDIT_CHECK_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4S_CREDIT_CHECK_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4S_CREDIT_CHECK_ITEM
  INTO TABLE IT_CRMS4S_CREDIT_CHECK_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4S_CREDIT_CHECK_ITEM
*  INTO TABLE @DATA(IT_CRMS4S_CREDIT_CHECK_ITEM2).
*--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_CRMS4S_CREDIT_CHECK_ITEM INDEX 1 INTO DATA(WA_CRMS4S_CREDIT_CHECK_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4S_CREDIT_CHECK_ITEM ASSIGNING <CRMS4S_CREDIT_CHECK_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4S_CREDIT_CHECK_ITEM>-ITEM_GUID = 1.
<CRMS4S_CREDIT_CHECK_ITEM>-PARTNER_NO = 1.
<CRMS4S_CREDIT_CHECK_ITEM>-CREDIT_SEGMENT = 1.
<CRMS4S_CREDIT_CHECK_ITEM>-ITEM_NO = 1.
<CRMS4S_CREDIT_CHECK_ITEM>-IS_RELEASED_OW = 1.

ENDLOOP.

LOOP AT IT_CRMS4S_CREDIT_CHECK_ITEM INTO WA_CRMS4S_CREDIT_CHECK_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4S_CREDIT_CHECK_ITEM-IS_RELEASED_DB, sy-vline,
  WA_CRMS4S_CREDIT_CHECK_ITEM-IS_CANCELLED_OW, sy-vline,
  WA_CRMS4S_CREDIT_CHECK_ITEM-IS_COMPLETED_OW, sy-vline,
  WA_CRMS4S_CREDIT_CHECK_ITEM-IS_COMPLETED_DB, sy-vline,
  WA_CRMS4S_CREDIT_CHECK_ITEM-IS_CREDIT_REL_OW, sy-vline,
  WA_CRMS4S_CREDIT_CHECK_ITEM-IS_CREDIT_REL_DB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4S_CREDIT_CHECK_ITEM 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_CRMS4S_CREDIT_CHECK_ITEM 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_CRMS4S_CREDIT_CHECK_ITEM INTO WA_CRMS4S_CREDIT_CHECK_ITEM.


*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 PARTNER_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_CREDIT_CHECK_ITEM-PARTNER_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_CREDIT_CHECK_ITEM-PARTNER_NO.
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_CRMS4S_CREDIT_CHECK_ITEM_STR, 
ITEM_GUID TYPE STRING,
PARTNER_NO TYPE STRING,
CREDIT_SEGMENT TYPE STRING,
ITEM_NO TYPE STRING,
IS_RELEASED_OW TYPE STRING,
IS_RELEASED_DB TYPE STRING,
IS_CANCELLED_OW TYPE STRING,
IS_COMPLETED_OW TYPE STRING,
IS_COMPLETED_DB TYPE STRING,
IS_CREDIT_REL_OW TYPE STRING,
IS_CREDIT_REL_DB TYPE STRING,
IS_CREDIT_BLK_OW TYPE STRING,
IS_CREDIT_BLK_DB TYPE STRING,
IS_IN_PROCESS_OW TYPE STRING,
GROSS_VALUE_OW TYPE STRING,
GROSS_VALUE_DB TYPE STRING,
BILLED_VALUE TYPE STRING,
CURRENCY TYPE STRING,
CREDIT_CHECK TYPE STRING,
VALUE_FOR_CHECK TYPE STRING,
COMMITMENT_UPDATE TYPE STRING,
VALUE_FOR_UPDATE TYPE STRING,
UPDATE_TYPE TYPE STRING,
DCD_UPDATE TYPE STRING,
DCD_IS_BLOCKED TYPE STRING,
DCD_IS_RELEASED TYPE STRING,
DCD_IS_APPROVED TYPE STRING,
DCD_IS_REJECTED TYPE STRING,
VALUE_FOR_DCD TYPE STRING,
LOG_HANDLE TYPE STRING,
LOGNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4S_CREDIT_CHECK_ITEM_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_CRMS4S_CREDIT_CHECK_ITEM_STR-ITEM_GUID sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-PARTNER_NO sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-CREDIT_SEGMENT sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-ITEM_NO sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_RELEASED_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_RELEASED_DB sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_CANCELLED_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_COMPLETED_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_COMPLETED_DB sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_CREDIT_REL_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_CREDIT_REL_DB sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_CREDIT_BLK_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_CREDIT_BLK_DB sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-IS_IN_PROCESS_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-GROSS_VALUE_OW sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-GROSS_VALUE_DB sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-BILLED_VALUE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-CURRENCY sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-CREDIT_CHECK sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-VALUE_FOR_CHECK sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-COMMITMENT_UPDATE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-VALUE_FOR_UPDATE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-UPDATE_TYPE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-DCD_UPDATE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-DCD_IS_BLOCKED sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-DCD_IS_RELEASED sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-DCD_IS_APPROVED sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-DCD_IS_REJECTED sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-VALUE_FOR_DCD sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-LOG_HANDLE sy-vline 
WA_CRMS4S_CREDIT_CHECK_ITEM_STR-LOGNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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