ABAP Select data from SAP table /MVA/AMC_FCS_POL_EXTPCL 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_EXTPCL 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_EXTPCL. 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_EXTPCL 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_EXTPCL TYPE STANDARD TABLE OF /MVA/AMC_FCS_POL_EXTPCL,
      WA_/MVA/AMC_FCS_POL_EXTPCL TYPE /MVA/AMC_FCS_POL_EXTPCL,
      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_EXTPCL> TYPE /MVA/AMC_FCS_POL_EXTPCL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMC_FCS_POL_EXTPCL
*  INTO TABLE @DATA(IT_/MVA/AMC_FCS_POL_EXTPCL2).
*--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_EXTPCL INDEX 1 INTO DATA(WA_/MVA/AMC_FCS_POL_EXTPCL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMC_FCS_POL_EXTPCL>-WA_EXTPCL = 1.
</MVA/AMC_FCS_POL_EXTPCL>-COMPENS_VL = 1.
</MVA/AMC_FCS_POL_EXTPCL>-NOCLAIMS_VL = 1.
</MVA/AMC_FCS_POL_EXTPCL>-CLAIMLOB_CD = 1.
</MVA/AMC_FCS_POL_EXTPCL>-CLDAY_DT = 1.

ENDLOOP.

LOOP AT IT_/MVA/AMC_FCS_POL_EXTPCL INTO WA_/MVA/AMC_FCS_POL_EXTPCL.
*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_EXTPCL-CURRENCY_ID, sy-vline,
  WA_/MVA/AMC_FCS_POL_EXTPCL-PM_ID, sy-vline,
  WA_/MVA/AMC_FCS_POL_EXTPCL-CUSTOMER_PB_CI, sy-vline,
  WA_/MVA/AMC_FCS_POL_EXTPCL-CLAIMLOB_TT, sy-vline,
  WA_/MVA/AMC_FCS_POL_EXTPCL-REFPMID_TT, sy-vline,
  WA_/MVA/AMC_FCS_POL_EXTPCL-CUSTOMER_TB_CI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMC_FCS_POL_EXTPCL 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_EXTPCL 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_EXTPCL INTO WA_/MVA/AMC_FCS_POL_EXTPCL.


*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_/MVA/AMC_FCS_POL_EXTPCL_STR, 
WA_EXTPCL TYPE STRING,
COMPENS_VL TYPE STRING,
NOCLAIMS_VL TYPE STRING,
CLAIMLOB_CD TYPE STRING,
CLDAY_DT TYPE STRING,
CURRENCY_ID TYPE STRING,
PM_ID TYPE STRING,
CUSTOMER_PB_CI TYPE STRING,
CLAIMLOB_TT TYPE STRING,
REFPMID_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,
EXTPOL_ID TYPE STRING,
EXTPCL_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMC_FCS_POL_EXTPCL_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_EXTPCL_STR-WA_EXTPCL sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-COMPENS_VL sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-NOCLAIMS_VL sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CLAIMLOB_CD sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CLDAY_DT sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CURRENCY_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-PM_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CUSTOMER_PB_CI sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CLAIMLOB_TT sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-REFPMID_TT sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-CUSTOMER_TB_CI sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-BO_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-POLICY_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-PPDPAC_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-POLICYPRODUCT_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-COVPAC_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-COVERAGE_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-COVCP_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-SUBJECT_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-EXTPOL_ID sy-vline 
WA_/MVA/AMC_FCS_POL_EXTPCL_STR-EXTPCL_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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