ABAP Select data from SAP table CCRCV_POL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCRCV_POL
*  INTO TABLE @DATA(IT_CCRCV_POL2).
*--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_CCRCV_POL INDEX 1 INTO DATA(WA_CCRCV_POL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCRCV_POL>-MANDT = 1.
<CCRCV_POL>-REG = 1.
<CCRCV_POL>-POLYIND_VAT = 1.
<CCRCV_POL>-POLYIND_CHARREG = 1.
<CCRCV_POL>-POLYIND_CHARPOL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCRCV_POL-POLYIND_VACLID, sy-vline,
  WA_CCRCV_POL-POLYIND_RVLID, sy-vline,
  WA_CCRCV_POL-MONOCOMP_VAT, sy-vline,
  WA_CCRCV_POL-MONOCOMP_VACLID, sy-vline,
  WA_CCRCV_POL-MONOCOMP_RVLID, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_CCRCV_POL 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_CCRCV_POL 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_CCRCV_POL INTO WA_CCRCV_POL.


*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_CCRCV_POL_STR, 
MANDT TYPE STRING,
REG TYPE STRING,
POLYIND_VAT TYPE STRING,
POLYIND_CHARREG TYPE STRING,
POLYIND_CHARPOL TYPE STRING,
POLYIND_VACLID TYPE STRING,
POLYIND_RVLID TYPE STRING,
MONOCOMP_VAT TYPE STRING,
MONOCOMP_VACLID TYPE STRING,
MONOCOMP_RVLID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCRCV_POL_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_CCRCV_POL_STR-MANDT sy-vline 
WA_CCRCV_POL_STR-REG sy-vline 
WA_CCRCV_POL_STR-POLYIND_VAT sy-vline 
WA_CCRCV_POL_STR-POLYIND_CHARREG sy-vline 
WA_CCRCV_POL_STR-POLYIND_CHARPOL sy-vline 
WA_CCRCV_POL_STR-POLYIND_VACLID sy-vline 
WA_CCRCV_POL_STR-POLYIND_RVLID sy-vline 
WA_CCRCV_POL_STR-MONOCOMP_VAT sy-vline 
WA_CCRCV_POL_STR-MONOCOMP_VACLID sy-vline 
WA_CCRCV_POL_STR-MONOCOMP_RVLID sy-vline      INTO ld_text SEPARATED BY SPACE.

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