ABAP Select data from SAP table V_VFSCAH_DB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_VFSCAH_DB 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_VFSCAH_DB. 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_VFSCAH_DB 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_VFSCAH_DB TYPE STANDARD TABLE OF V_VFSCAH_DB,
      WA_V_VFSCAH_DB TYPE V_VFSCAH_DB,
      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_VFSCAH_DB> TYPE V_VFSCAH_DB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_VFSCAH_DB
*  INTO TABLE @DATA(IT_V_VFSCAH_DB2).
*--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_VFSCAH_DB INDEX 1 INTO DATA(WA_V_VFSCAH_DB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_VFSCAH_DB>-MANDT = 1.
<V_VFSCAH_DB>-SPRAS = 1.
<V_VFSCAH_DB>-SCAID = 1.
<V_VFSCAH_DB>-SCA_TXT = 1.
<V_VFSCAH_DB>-SCATYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_VFSCAH_DB-SCABAS, sy-vline,
  WA_V_VFSCAH_DB-SCUOF, sy-vline,
  WA_V_VFSCAH_DB-SCBVRR, sy-vline,
  WA_V_VFSCAH_DB-KRECH, sy-vline,
  WA_V_VFSCAH_DB-KPEIN, sy-vline,
  WA_V_VFSCAH_DB-KMEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_VFSCAH_DB 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_VFSCAH_DB 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_VFSCAH_DB INTO WA_V_VFSCAH_DB.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_VFSCAH_DB-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VFSCAH_DB-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field SCUOF
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_VFSCAH_DB-SCUOF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VFSCAH_DB-SCUOF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_VFSCAH_DB-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_VFSCAH_DB-KMEIN.
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_VFSCAH_DB_STR, 
MANDT TYPE STRING,
SPRAS TYPE STRING,
SCAID TYPE STRING,
SCA_TXT TYPE STRING,
SCATYP TYPE STRING,
SCABAS TYPE STRING,
SCUOF TYPE STRING,
SCBVRR TYPE STRING,
KRECH TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
CCBVRR TYPE STRING,
LPEIN TYPE STRING,
SCALEN TYPE STRING,
MINFLG TYPE STRING,
MAXFLG TYPE STRING,
KAPPL TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_VFSCAH_DB_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_VFSCAH_DB_STR-MANDT sy-vline 
WA_V_VFSCAH_DB_STR-SPRAS sy-vline 
WA_V_VFSCAH_DB_STR-SCAID sy-vline 
WA_V_VFSCAH_DB_STR-SCA_TXT sy-vline 
WA_V_VFSCAH_DB_STR-SCATYP sy-vline 
WA_V_VFSCAH_DB_STR-SCABAS sy-vline 
WA_V_VFSCAH_DB_STR-SCUOF sy-vline 
WA_V_VFSCAH_DB_STR-SCBVRR sy-vline 
WA_V_VFSCAH_DB_STR-KRECH sy-vline 
WA_V_VFSCAH_DB_STR-KPEIN sy-vline 
WA_V_VFSCAH_DB_STR-KMEIN sy-vline 
WA_V_VFSCAH_DB_STR-CCBVRR sy-vline 
WA_V_VFSCAH_DB_STR-LPEIN sy-vline 
WA_V_VFSCAH_DB_STR-SCALEN sy-vline 
WA_V_VFSCAH_DB_STR-MINFLG sy-vline 
WA_V_VFSCAH_DB_STR-MAXFLG sy-vline 
WA_V_VFSCAH_DB_STR-KAPPL sy-vline 
WA_V_VFSCAH_DB_STR-ERNAM sy-vline 
WA_V_VFSCAH_DB_STR-ERDAT sy-vline 
WA_V_VFSCAH_DB_STR-ERZET sy-vline 
WA_V_VFSCAH_DB_STR-AENAM sy-vline 
WA_V_VFSCAH_DB_STR-AEDAT sy-vline 
WA_V_VFSCAH_DB_STR-AEZET sy-vline      INTO ld_text SEPARATED BY SPACE.

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