ABAP Select data from SAP table V_COER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_COER
*  INTO TABLE @DATA(IT_V_COER2).
*--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_V_COER INDEX 1 INTO DATA(WA_V_COER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_COER>-MANDT = 1.
<V_COER>-LEDNR = 1.
<V_COER>-OBJNR = 1.
<V_COER>-GJAHR = 1.
<V_COER>-WRTTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_COER-KSTAR, sy-vline,
  WA_V_COER-VRGNG, sy-vline,
  WA_V_COER-TWAER, sy-vline,
  WA_V_COER-VBELN, sy-vline,
  WA_V_COER-VPOSN, sy-vline,
  WA_V_COER-AENDZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_COER 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_V_COER 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_V_COER INTO WA_V_COER.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_COER-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_COER-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit NUMCV, internal->external for field BP_LEDNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_V_COER-BP_LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_COER-BP_LEDNR.
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_V_COER_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
KSTAR TYPE STRING,
VRGNG TYPE STRING,
TWAER TYPE STRING,
VBELN TYPE STRING,
VPOSN TYPE STRING,
AENDZ TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
FKDPE TYPE STRING,
WTGBTR TYPE STRING,
WOGBTR TYPE STRING,
WLGBTR TYPE STRING,
WKGBTR TYPE STRING,
POSIT TYPE STRING,
WRTTP_PLAN TYPE STRING,
BP_LEDNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_COER_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_V_COER_STR-MANDT sy-vline 
WA_V_COER_STR-LEDNR sy-vline 
WA_V_COER_STR-OBJNR sy-vline 
WA_V_COER_STR-GJAHR sy-vline 
WA_V_COER_STR-WRTTP sy-vline 
WA_V_COER_STR-KSTAR sy-vline 
WA_V_COER_STR-VRGNG sy-vline 
WA_V_COER_STR-TWAER sy-vline 
WA_V_COER_STR-VBELN sy-vline 
WA_V_COER_STR-VPOSN sy-vline 
WA_V_COER_STR-AENDZ sy-vline 
WA_V_COER_STR-BUKRS sy-vline 
WA_V_COER_STR-KOKRS sy-vline 
WA_V_COER_STR-FKDPE sy-vline 
WA_V_COER_STR-WTGBTR sy-vline 
WA_V_COER_STR-WOGBTR sy-vline 
WA_V_COER_STR-WLGBTR sy-vline 
WA_V_COER_STR-WKGBTR sy-vline 
WA_V_COER_STR-POSIT sy-vline 
WA_V_COER_STR-WRTTP_PLAN sy-vline 
WA_V_COER_STR-BP_LEDNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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