ABAP Select data from SAP table CRMS4S_CREDIT_DCD_UPDATE 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_DCD_UPDATE 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_DCD_UPDATE. 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_DCD_UPDATE 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_DCD_UPDATE TYPE STANDARD TABLE OF CRMS4S_CREDIT_DCD_UPDATE,
      WA_CRMS4S_CREDIT_DCD_UPDATE TYPE CRMS4S_CREDIT_DCD_UPDATE,
      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_DCD_UPDATE> TYPE CRMS4S_CREDIT_DCD_UPDATE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4S_CREDIT_DCD_UPDATE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4S_CREDIT_DCD_UPDATE
  INTO TABLE IT_CRMS4S_CREDIT_DCD_UPDATE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4S_CREDIT_DCD_UPDATE
*  INTO TABLE @DATA(IT_CRMS4S_CREDIT_DCD_UPDATE2).
*--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_DCD_UPDATE INDEX 1 INTO DATA(WA_CRMS4S_CREDIT_DCD_UPDATE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4S_CREDIT_DCD_UPDATE ASSIGNING <CRMS4S_CREDIT_DCD_UPDATE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4S_CREDIT_DCD_UPDATE>-OBJECT_GUID = 1.
<CRMS4S_CREDIT_DCD_UPDATE>-OBJECT_KIND = 1.
<CRMS4S_CREDIT_DCD_UPDATE>-CASE_GUID = 1.
<CRMS4S_CREDIT_DCD_UPDATE>-PARTNER = 1.
<CRMS4S_CREDIT_DCD_UPDATE>-CREDIT_SGMNT = 1.

ENDLOOP.

LOOP AT IT_CRMS4S_CREDIT_DCD_UPDATE INTO WA_CRMS4S_CREDIT_DCD_UPDATE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4S_CREDIT_DCD_UPDATE-OBJKEY, sy-vline,
  WA_CRMS4S_CREDIT_DCD_UPDATE-OBJTYPE, sy-vline,
  WA_CRMS4S_CREDIT_DCD_UPDATE-LOGSYS, sy-vline,
  WA_CRMS4S_CREDIT_DCD_UPDATE-DCD_REQ_TIME, sy-vline,
  WA_CRMS4S_CREDIT_DCD_UPDATE-CHECK_ID, sy-vline,
  WA_CRMS4S_CREDIT_DCD_UPDATE-IS_BLOCKED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4S_CREDIT_DCD_UPDATE 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_DCD_UPDATE 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_DCD_UPDATE INTO WA_CRMS4S_CREDIT_DCD_UPDATE.


*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
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_CREDIT_DCD_UPDATE-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_CREDIT_DCD_UPDATE-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_CREDIT_DCD_UPDATE-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_CREDIT_DCD_UPDATE-LOGSYS.
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_DCD_UPDATE_STR, 
OBJECT_GUID TYPE STRING,
OBJECT_KIND TYPE STRING,
CASE_GUID TYPE STRING,
PARTNER TYPE STRING,
CREDIT_SGMNT TYPE STRING,
OBJKEY TYPE STRING,
OBJTYPE TYPE STRING,
LOGSYS TYPE STRING,
DCD_REQ_TIME TYPE STRING,
CHECK_ID TYPE STRING,
IS_BLOCKED TYPE STRING,
IS_RELEASED TYPE STRING,
IS_APPROVED TYPE STRING,
IS_REJECTED TYPE STRING,
KWKKC TYPE STRING,
KWKKC_CURR TYPE STRING,
AMOUNT_SEC TYPE STRING,
CMNGV TYPE STRING,
CTLPC TYPE STRING,
EXT_REF TYPE STRING,
ACCOUNT_BLOCKED TYPE STRING,
SALES_EMPLOYEE TYPE STRING,
T_NOTE TYPE STRING,
LOG_HANDLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4S_CREDIT_DCD_UPDATE_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_DCD_UPDATE_STR-OBJECT_GUID sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-OBJECT_KIND sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-CASE_GUID sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-PARTNER sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-CREDIT_SGMNT sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-OBJKEY sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-OBJTYPE sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-LOGSYS sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-DCD_REQ_TIME sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-CHECK_ID sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-IS_BLOCKED sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-IS_RELEASED sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-IS_APPROVED sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-IS_REJECTED sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-KWKKC sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-KWKKC_CURR sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-AMOUNT_SEC sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-CMNGV sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-CTLPC sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-EXT_REF sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-ACCOUNT_BLOCKED sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-SALES_EMPLOYEE sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-T_NOTE sy-vline 
WA_CRMS4S_CREDIT_DCD_UPDATE_STR-LOG_HANDLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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