ABAP Select data from SAP table /MVA/AMC_FCS_POL_DEDCTBLCPCO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MVA/AMC_FCS_POL_DEDCTBLCPCO 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 /MVA/AMC_FCS_POL_DEDCTBLCPCO. 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 /MVA/AMC_FCS_POL_DEDCTBLCPCO 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_/MVA/AMC_FCS_POL_DEDCTBLCPCO TYPE STANDARD TABLE OF /MVA/AMC_FCS_POL_DEDCTBLCPCO,
      WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO TYPE /MVA/AMC_FCS_POL_DEDCTBLCPCO,
      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: </MVA/AMC_FCS_POL_DEDCTBLCPCO> TYPE /MVA/AMC_FCS_POL_DEDCTBLCPCO.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MVA/AMC_FCS_POL_DEDCTBLCPCO
  INTO TABLE IT_/MVA/AMC_FCS_POL_DEDCTBLCPCO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMC_FCS_POL_DEDCTBLCPCO
*  INTO TABLE @DATA(IT_/MVA/AMC_FCS_POL_DEDCTBLCPCO2).
*--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_/MVA/AMC_FCS_POL_DEDCTBLCPCO INDEX 1 INTO DATA(WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MVA/AMC_FCS_POL_DEDCTBLCPCO ASSIGNING </MVA/AMC_FCS_POL_DEDCTBLCPCO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMC_FCS_POL_DEDCTBLCPCO>-WA_DEDCTBLCPC = 1.
</MVA/AMC_FCS_POL_DEDCTBLCPCO>-DEDUCTIBLE_CD = 1.
</MVA/AMC_FCS_POL_DEDCTBLCPCO>-DEDCTBL_AM = 1.
</MVA/AMC_FCS_POL_DEDCTBLCPCO>-DEDCTBL_VL = 1.
</MVA/AMC_FCS_POL_DEDCTBLCPCO>-DEDCTBLMIN_AM = 1.

ENDLOOP.

LOOP AT IT_/MVA/AMC_FCS_POL_DEDCTBLCPCO INTO WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DEDCTBLMAX_AM, sy-vline,
  WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DDTBEGIN_DT, sy-vline,
  WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DDTMOD_FG, sy-vline,
  WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DDTEND_DT, sy-vline,
  WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-REFERENCE_ID, sy-vline,
  WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DEDUCTIBLETYP_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO 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_/MVA/AMC_FCS_POL_DEDCTBLCPCO 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_/MVA/AMC_FCS_POL_DEDCTBLCPCO INTO WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO.


*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 J7PHD, internal->external for field DDTEND_DT
CALL FUNCTION 'CONVERSION_EXIT_J7PHD_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DDTEND_DT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-DDTEND_DT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APPLNR_CD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-APPLNR_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO-APPLNR_CD.
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_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR, 
WA_DEDCTBLCPC TYPE STRING,
DEDUCTIBLE_CD TYPE STRING,
DEDCTBL_AM TYPE STRING,
DEDCTBL_VL TYPE STRING,
DEDCTBLMIN_AM TYPE STRING,
DEDCTBLMAX_AM TYPE STRING,
DDTBEGIN_DT TYPE STRING,
DDTMOD_FG TYPE STRING,
DDTEND_DT TYPE STRING,
REFERENCE_ID TYPE STRING,
DEDUCTIBLETYP_CD TYPE STRING,
SORTSEQUDEDCT_VL TYPE STRING,
PM_ID TYPE STRING,
CURRENCY_ID TYPE STRING,
APPLNR_CD TYPE STRING,
DEDCTBLKFT_TT TYPE STRING,
DEDCTBLFT_TT TYPE STRING,
CUSTOMER_PB_CI TYPE STRING,
DEDCTBLTP_TT TYPE STRING,
DEDUCTIBLETYP_TT TYPE STRING,
DEDUCTIBLE_TT TYPE STRING,
FROMRISK_FG TYPE STRING,
PBSTYP_TT TYPE STRING,
REFERENCE_TT TYPE STRING,
CUSTOMER_TB_CI TYPE STRING,
BO_ID TYPE STRING,
POLICY_ID TYPE STRING,
PPDPAC_ID TYPE STRING,
POLICYPRODUCT_ID TYPE STRING,
COVPAC_ID TYPE STRING,
COVERAGE_ID TYPE STRING,
COVCP_ID TYPE STRING,
SUBJECT_ID TYPE STRING,
UWDCN_ID TYPE STRING,
COVCPCO_ID TYPE STRING,
DEDCTBL_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_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_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-WA_DEDCTBLCPC sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDUCTIBLE_CD sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBL_AM sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBL_VL sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBLMIN_AM sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBLMAX_AM sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DDTBEGIN_DT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DDTMOD_FG sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DDTEND_DT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-REFERENCE_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDUCTIBLETYP_CD sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-SORTSEQUDEDCT_VL sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-PM_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-CURRENCY_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-APPLNR_CD sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBLKFT_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBLFT_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-CUSTOMER_PB_CI sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBLTP_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDUCTIBLETYP_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDUCTIBLE_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-FROMRISK_FG sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-PBSTYP_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-REFERENCE_TT sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-CUSTOMER_TB_CI sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-BO_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-POLICY_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-PPDPAC_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-POLICYPRODUCT_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-COVPAC_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-COVERAGE_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-COVCP_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-SUBJECT_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-UWDCN_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-COVCPCO_ID sy-vline 
WA_/MVA/AMC_FCS_POL_DEDCTBLCPCO_STR-DEDCTBL_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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