ABAP Select data from SAP table CTE_S_FGM_POST_TR_DOC_ALLOCAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CTE_S_FGM_POST_TR_DOC_ALLOCAT 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_S_FGM_POST_TR_DOC_ALLOCAT. 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_S_FGM_POST_TR_DOC_ALLOCAT 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_S_FGM_POST_TR_DOC_ALLOCAT TYPE STANDARD TABLE OF CTE_S_FGM_POST_TR_DOC_ALLOCAT,
      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT TYPE CTE_S_FGM_POST_TR_DOC_ALLOCAT,
      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_S_FGM_POST_TR_DOC_ALLOCAT> TYPE CTE_S_FGM_POST_TR_DOC_ALLOCAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTE_S_FGM_POST_TR_DOC_ALLOCAT
*  INTO TABLE @DATA(IT_CTE_S_FGM_POST_TR_DOC_ALLOCAT2).
*--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_S_FGM_POST_TR_DOC_ALLOCAT INDEX 1 INTO DATA(WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTE_S_FGM_POST_TR_DOC_ALLOCAT>-ALLOCATION_ID = 1.
<CTE_S_FGM_POST_TR_DOC_ALLOCAT>-ALLOCATION_PERCENTAGE = 1.
<CTE_S_FGM_POST_TR_DOC_ALLOCAT>-GROSS_AMOUNT = 1.
<CTE_S_FGM_POST_TR_DOC_ALLOCAT>-COMPANY_CODE = 1.
<CTE_S_FGM_POST_TR_DOC_ALLOCAT>-COST_CENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-INTERNAL_ORDER, sy-vline,
  WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-PROJECT_WBS_ELEMENT_EXT, sy-vline,
  WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-SALES_ORDER, sy-vline,
  WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-SALES_ORDER_ITEM, sy-vline,
  WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK, sy-vline,
  WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK_ACTIVITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT 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_S_FGM_POST_TR_DOC_ALLOCAT 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_S_FGM_POST_TR_DOC_ALLOCAT INTO WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT.


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

*Conversion exit ALPHA, internal->external for field INTERNAL_ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-INTERNAL_ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-INTERNAL_ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PROJECT_WBS_ELEMENT_EXT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-PROJECT_WBS_ELEMENT_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-PROJECT_WBS_ELEMENT_EXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SALES_ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-SALES_ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-SALES_ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NETWORK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field NETWORK_ACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK_ACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-NETWORK_ACTIVITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field COMMITMENT_ITEM_LONG
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-COMMITMENT_ITEM_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-COMMITMENT_ITEM_LONG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT-GRANT_NBR.
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_S_FGM_POST_TR_DOC_ALLOCAT_STR, 
ALLOCATION_ID TYPE STRING,
ALLOCATION_PERCENTAGE TYPE STRING,
GROSS_AMOUNT TYPE STRING,
COMPANY_CODE TYPE STRING,
COST_CENTER TYPE STRING,
INTERNAL_ORDER TYPE STRING,
PROJECT_WBS_ELEMENT_EXT TYPE STRING,
SALES_ORDER TYPE STRING,
SALES_ORDER_ITEM TYPE STRING,
NETWORK TYPE STRING,
NETWORK_ACTIVITY TYPE STRING,
COMMITMENT_ITEM_LONG TYPE STRING,
FUNDS_CENTER TYPE STRING,
FUNCTIONAL_AREA TYPE STRING,
FUND TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGET_PERIOD TYPE STRING,
ADDITIONAL_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_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_S_FGM_POST_TR_DOC_ALLOCAT_STR-ALLOCATION_ID sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-ALLOCATION_PERCENTAGE sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-GROSS_AMOUNT sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-COMPANY_CODE sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-COST_CENTER sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-INTERNAL_ORDER sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-PROJECT_WBS_ELEMENT_EXT sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-SALES_ORDER sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-SALES_ORDER_ITEM sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-NETWORK sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-NETWORK_ACTIVITY sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-COMMITMENT_ITEM_LONG sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-FUNDS_CENTER sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-FUNCTIONAL_AREA sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-FUND sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-GRANT_NBR sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-BUDGET_PERIOD sy-vline 
WA_CTE_S_FGM_POST_TR_DOC_ALLOCAT_STR-ADDITIONAL_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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