ABAP Select data from SAP table CTE_C_COST_OBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTE_C_COST_OBJ
*  INTO TABLE @DATA(IT_CTE_C_COST_OBJ2).
*--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_CTE_C_COST_OBJ INDEX 1 INTO DATA(WA_CTE_C_COST_OBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTE_C_COST_OBJ>-CLIENT = 1.
<CTE_C_COST_OBJ>-COST_OBJECT_TYPE = 1.
<CTE_C_COST_OBJ>-MESSAGE_TYPE = 1.
<CTE_C_COST_OBJ>-PHASED_ROLLOUT_TAB = 1.
<CTE_C_COST_OBJ>-SINGLE_PHASED_ROLLOUT_TAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTE_C_COST_OBJ-SINGLE_EXCLUDE_TAB, sy-vline,
  WA_CTE_C_COST_OBJ-INTERNAL_DOMAIN_NAME, sy-vline,
  WA_CTE_C_COST_OBJ-EXTERNAL_DOMAIN_NAME, sy-vline,
  WA_CTE_C_COST_OBJ-JOB_NAME, sy-vline,
  WA_CTE_C_COST_OBJ-VARIANT_NAME, sy-vline,
  WA_CTE_C_COST_OBJ-PHASED_ROLLOUT_TIME_IND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTE_C_COST_OBJ 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_CTE_C_COST_OBJ 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_CTE_C_COST_OBJ INTO WA_CTE_C_COST_OBJ.


*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 MESSAGE_TYPE_OBJECT_CLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_C_COST_OBJ-MESSAGE_TYPE_OBJECT_CLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_C_COST_OBJ-MESSAGE_TYPE_OBJECT_CLASS.
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_CTE_C_COST_OBJ_STR, 
CLIENT TYPE STRING,
COST_OBJECT_TYPE TYPE STRING,
MESSAGE_TYPE TYPE STRING,
PHASED_ROLLOUT_TAB TYPE STRING,
SINGLE_PHASED_ROLLOUT_TAB TYPE STRING,
SINGLE_EXCLUDE_TAB TYPE STRING,
INTERNAL_DOMAIN_NAME TYPE STRING,
EXTERNAL_DOMAIN_NAME TYPE STRING,
JOB_NAME TYPE STRING,
VARIANT_NAME TYPE STRING,
PHASED_ROLLOUT_TIME_IND TYPE STRING,
JOB_DEFAULT_START_TIME TYPE STRING,
EXPORT_REPORT_NAME TYPE STRING,
SELECTION_VIEW TYPE STRING,
SELECTION_STRUCTURE TYPE STRING,
EXPORT_HANDLER_CLASS TYPE STRING,
IS_S4_HANA_CE_RELEVANT TYPE STRING,
TCODE TYPE STRING,
LOG_SUB_OBJECT TYPE STRING,
COMM_LOG_TAB TYPE STRING,
DEFAULT_SELE_PACK_SIZE TYPE STRING,
KEY_FIELD_1_NAME TYPE STRING,
KEY_FIELD_2_NAME TYPE STRING,
KEY_STRUCTURE TYPE STRING,
LIST_API_TAB TYPE STRING,
LIST_API_MULTIPLE_TAB TYPE STRING,
START_DATE_FIELD TYPE STRING,
END_DATE_FIELD TYPE STRING,
MESSAGE_TYPE_OBJECT_CLASS TYPE STRING,
POST_STRU_FIELDNAME TYPE STRING,
COM_MONI_FCAT_STRUC TYPE STRING,
COM_MONI_NAVI_TRANSACTION TYPE STRING,
COM_MONI_SET_PARAMETER_ID_1 TYPE STRING,
COM_MONI_SET_PARAMETER_ID_2 TYPE STRING,
IS_INVOICE_POSTING_RELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTE_C_COST_OBJ_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_CTE_C_COST_OBJ_STR-CLIENT sy-vline 
WA_CTE_C_COST_OBJ_STR-COST_OBJECT_TYPE sy-vline 
WA_CTE_C_COST_OBJ_STR-MESSAGE_TYPE sy-vline 
WA_CTE_C_COST_OBJ_STR-PHASED_ROLLOUT_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-SINGLE_PHASED_ROLLOUT_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-SINGLE_EXCLUDE_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-INTERNAL_DOMAIN_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-EXTERNAL_DOMAIN_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-JOB_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-VARIANT_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-PHASED_ROLLOUT_TIME_IND sy-vline 
WA_CTE_C_COST_OBJ_STR-JOB_DEFAULT_START_TIME sy-vline 
WA_CTE_C_COST_OBJ_STR-EXPORT_REPORT_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-SELECTION_VIEW sy-vline 
WA_CTE_C_COST_OBJ_STR-SELECTION_STRUCTURE sy-vline 
WA_CTE_C_COST_OBJ_STR-EXPORT_HANDLER_CLASS sy-vline 
WA_CTE_C_COST_OBJ_STR-IS_S4_HANA_CE_RELEVANT sy-vline 
WA_CTE_C_COST_OBJ_STR-TCODE sy-vline 
WA_CTE_C_COST_OBJ_STR-LOG_SUB_OBJECT sy-vline 
WA_CTE_C_COST_OBJ_STR-COMM_LOG_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-DEFAULT_SELE_PACK_SIZE sy-vline 
WA_CTE_C_COST_OBJ_STR-KEY_FIELD_1_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-KEY_FIELD_2_NAME sy-vline 
WA_CTE_C_COST_OBJ_STR-KEY_STRUCTURE sy-vline 
WA_CTE_C_COST_OBJ_STR-LIST_API_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-LIST_API_MULTIPLE_TAB sy-vline 
WA_CTE_C_COST_OBJ_STR-START_DATE_FIELD sy-vline 
WA_CTE_C_COST_OBJ_STR-END_DATE_FIELD sy-vline 
WA_CTE_C_COST_OBJ_STR-MESSAGE_TYPE_OBJECT_CLASS sy-vline 
WA_CTE_C_COST_OBJ_STR-POST_STRU_FIELDNAME sy-vline 
WA_CTE_C_COST_OBJ_STR-COM_MONI_FCAT_STRUC sy-vline 
WA_CTE_C_COST_OBJ_STR-COM_MONI_NAVI_TRANSACTION sy-vline 
WA_CTE_C_COST_OBJ_STR-COM_MONI_SET_PARAMETER_ID_1 sy-vline 
WA_CTE_C_COST_OBJ_STR-COM_MONI_SET_PARAMETER_ID_2 sy-vline 
WA_CTE_C_COST_OBJ_STR-IS_INVOICE_POSTING_RELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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