ABAP Select data from SAP table CRM_ISX_CC_RANGE_TABLE_CLASS_O into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_ISX_CC_RANGE_TABLE_CLASS_O
*  INTO TABLE @DATA(IT_CRM_ISX_CC_RANGE_TABLE_CLASS_O2).
*--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_CRM_ISX_CC_RANGE_TABLE_CLASS_O INDEX 1 INTO DATA(WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_ISX_CC_RANGE_TABLE_CLASS_O>-CONTROLLER = 1.
<CRM_ISX_CC_RANGE_TABLE_CLASS_O>-BASE = 1.
<CRM_ISX_CC_RANGE_TABLE_CLASS_O>-CONTROLLER = 1.
<CRM_ISX_CC_RANGE_TABLE_CLASS_O>-NAME = 1.
<CRM_ISX_CC_RANGE_TABLE_CLASS_O>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-CHOICE, sy-vline,
  WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-SELECTION, sy-vline,
  WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-CONTROLLER, sy-vline,
  WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-STRING, sy-vline,
  WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-NUMBER, sy-vline,
  WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O 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_CRM_ISX_CC_RANGE_TABLE_CLASS_O 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_CRM_ISX_CC_RANGE_TABLE_CLASS_O INTO WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O.


*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_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR, 
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
NAME TYPE STRING,
DESCRIPTION TYPE STRING,
CHOICE TYPE STRING,
SELECTION TYPE STRING,
CONTROLLER TYPE STRING,
STRING TYPE STRING,
NUMBER TYPE STRING,
CONTROLLER TYPE STRING,
COMPUTATION_MODE TYPE STRING,
CONTENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_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_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CONTROLLER sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-BASE sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CONTROLLER sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-NAME sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-DESCRIPTION sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CHOICE sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-SELECTION sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CONTROLLER sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-STRING sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-NUMBER sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CONTROLLER sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-COMPUTATION_MODE sy-vline 
WA_CRM_ISX_CC_RANGE_TABLE_CLASS_O_STR-CONTENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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