ABAP Select data from SAP table FERC_C1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FERC_C1 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 FERC_C1. 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 FERC_C1 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_FERC_C1 TYPE STANDARD TABLE OF FERC_C1,
      WA_FERC_C1 TYPE FERC_C1,
      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: <FERC_C1> TYPE FERC_C1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FERC_C1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FERC_C1
  INTO TABLE IT_FERC_C1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FERC_C1
*  INTO TABLE @DATA(IT_FERC_C12).
*--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_FERC_C1 INDEX 1 INTO DATA(WA_FERC_C12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FERC_C1 ASSIGNING <FERC_C1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FERC_C1>-MANDT = 1.
<FERC_C1>-RUN_ID = 1.
<FERC_C1>-STDCOSTADJ = 1.
<FERC_C1>-VARIANCE = 1.
<FERC_C1>-EXT_SETT = 1.

ENDLOOP.

LOOP AT IT_FERC_C1 INTO WA_FERC_C1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FERC_C1-NEG_FLOW, sy-vline,
  WA_FERC_C1-CC_ASS, sy-vline,
  WA_FERC_C1-KTOKS, sy-vline,
  WA_FERC_C1-KOSAR, sy-vline,
  WA_FERC_C1-CPCE_BENE, sy-vline,
  WA_FERC_C1-CPCE_DEFAU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FERC_C1 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_FERC_C1 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_FERC_C1 INTO WA_FERC_C1.


*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 CPCE_BENE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-CPCE_BENE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-CPCE_BENE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CPCE_DEFAU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-CPCE_DEFAU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-CPCE_DEFAU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CPCE_PAYRT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-CPCE_PAYRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-CPCE_PAYRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CO_VERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-CO_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-CO_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FI_VERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-FI_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-FI_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field SUMM_AMT
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_FERC_C1-SUMM_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FERC_C1-SUMM_AMT.
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_FERC_C1_STR, 
MANDT TYPE STRING,
RUN_ID TYPE STRING,
STDCOSTADJ TYPE STRING,
VARIANCE TYPE STRING,
EXT_SETT TYPE STRING,
NEG_FLOW TYPE STRING,
CC_ASS TYPE STRING,
KTOKS TYPE STRING,
KOSAR TYPE STRING,
CPCE_BENE TYPE STRING,
CPCE_DEFAU TYPE STRING,
CPCE_PAYRT TYPE STRING,
CLRG_NEG TYPE STRING,
ACC_ABS TYPE STRING,
ACC_REL TYPE STRING,
DTYP_BS TYPE STRING,
DTYP_PL TYPE STRING,
DTYP_SC TYPE STRING,
CO_VERSION TYPE STRING,
FI_VERSION TYPE STRING,
ACTUAL TYPE STRING,
SUMM_PRC TYPE STRING,
SUMM_AMT TYPE STRING,
SUMM_OTYPE TYPE STRING,
ADJ_FLOW TYPE STRING,
NRG_CLRG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FERC_C1_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_FERC_C1_STR-MANDT sy-vline 
WA_FERC_C1_STR-RUN_ID sy-vline 
WA_FERC_C1_STR-STDCOSTADJ sy-vline 
WA_FERC_C1_STR-VARIANCE sy-vline 
WA_FERC_C1_STR-EXT_SETT sy-vline 
WA_FERC_C1_STR-NEG_FLOW sy-vline 
WA_FERC_C1_STR-CC_ASS sy-vline 
WA_FERC_C1_STR-KTOKS sy-vline 
WA_FERC_C1_STR-KOSAR sy-vline 
WA_FERC_C1_STR-CPCE_BENE sy-vline 
WA_FERC_C1_STR-CPCE_DEFAU sy-vline 
WA_FERC_C1_STR-CPCE_PAYRT sy-vline 
WA_FERC_C1_STR-CLRG_NEG sy-vline 
WA_FERC_C1_STR-ACC_ABS sy-vline 
WA_FERC_C1_STR-ACC_REL sy-vline 
WA_FERC_C1_STR-DTYP_BS sy-vline 
WA_FERC_C1_STR-DTYP_PL sy-vline 
WA_FERC_C1_STR-DTYP_SC sy-vline 
WA_FERC_C1_STR-CO_VERSION sy-vline 
WA_FERC_C1_STR-FI_VERSION sy-vline 
WA_FERC_C1_STR-ACTUAL sy-vline 
WA_FERC_C1_STR-SUMM_PRC sy-vline 
WA_FERC_C1_STR-SUMM_AMT sy-vline 
WA_FERC_C1_STR-SUMM_OTYPE sy-vline 
WA_FERC_C1_STR-ADJ_FLOW sy-vline 
WA_FERC_C1_STR-NRG_CLRG sy-vline      INTO ld_text SEPARATED BY SPACE.

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