ABAP Select data from SAP table CRMS_FDT_RULE_NODE_COND_WH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_FDT_RULE_NODE_COND_WH
*  INTO TABLE @DATA(IT_CRMS_FDT_RULE_NODE_COND_WH2).
*--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_CRMS_FDT_RULE_NODE_COND_WH INDEX 1 INTO DATA(WA_CRMS_FDT_RULE_NODE_COND_WH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_FDT_RULE_NODE_COND_WH>-SIGN = 1.
<CRMS_FDT_RULE_NODE_COND_WH>-OPTION = 1.
<CRMS_FDT_RULE_NODE_COND_WH>-LVALUE = 1.
<CRMS_FDT_RULE_NODE_COND_WH>-VALUE = 1.
<CRMS_FDT_RULE_NODE_COND_WH>-SUPPLEMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_FDT_RULE_NODE_COND_WH-HVALUE, sy-vline,
  WA_CRMS_FDT_RULE_NODE_COND_WH-VALUE, sy-vline,
  WA_CRMS_FDT_RULE_NODE_COND_WH-SUPPLEMENT, sy-vline,
  WA_CRMS_FDT_RULE_NODE_COND_WH-LTYPE, sy-vline,
  WA_CRMS_FDT_RULE_NODE_COND_WH-LDESCRIP, sy-vline,
  WA_CRMS_FDT_RULE_NODE_COND_WH-LFORMULA_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_FDT_RULE_NODE_COND_WH 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_CRMS_FDT_RULE_NODE_COND_WH 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_CRMS_FDT_RULE_NODE_COND_WH INTO WA_CRMS_FDT_RULE_NODE_COND_WH.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CRMS_FDT_RULE_NODE_COND_WH_STR, 
SIGN TYPE STRING,
OPTION TYPE STRING,
LVALUE TYPE STRING,
VALUE TYPE STRING,
SUPPLEMENT TYPE STRING,
HVALUE TYPE STRING,
VALUE TYPE STRING,
SUPPLEMENT TYPE STRING,
LTYPE TYPE STRING,
LDESCRIP TYPE STRING,
LFORMULA_TEXT TYPE STRING,
HTYPE TYPE STRING,
HDESCRIP TYPE STRING,
HFORMULA_TEXT TYPE STRING,
FUNCTION_NAME TYPE STRING,
COLUMN_NAME TYPE STRING,
WHERE_ELEMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_FDT_RULE_NODE_COND_WH_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_CRMS_FDT_RULE_NODE_COND_WH_STR-SIGN sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-OPTION sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-LVALUE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-VALUE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-SUPPLEMENT sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-HVALUE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-VALUE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-SUPPLEMENT sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-LTYPE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-LDESCRIP sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-LFORMULA_TEXT sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-HTYPE sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-HDESCRIP sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-HFORMULA_TEXT sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-FUNCTION_NAME sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-COLUMN_NAME sy-vline 
WA_CRMS_FDT_RULE_NODE_COND_WH_STR-WHERE_ELEMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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