ABAP Select data from SAP table VVISCSUACCFIRM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVISCSUACCFIRM
*  INTO TABLE @DATA(IT_VVISCSUACCFIRM2).
*--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_VVISCSUACCFIRM INDEX 1 INTO DATA(WA_VVISCSUACCFIRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVISCSUACCFIRM>-MANDT = 1.
<VVISCSUACCFIRM>-INTRENO = 1.
<VVISCSUACCFIRM>-OBJNR = 1.
<VVISCSUACCFIRM>-SKABRF = 1.
<VVISCSUACCFIRM>-ASSIGNTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVISCSUACCFIRM-BUKRS, sy-vline,
  WA_VVISCSUACCFIRM-SWENR, sy-vline,
  WA_VVISCSUACCFIRM-SNKSL, sy-vline,
  WA_VVISCSUACCFIRM-SEMPSL, sy-vline,
  WA_VVISCSUACCFIRM-XSU, sy-vline,
  WA_VVISCSUACCFIRM-EXCHANGETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVISCSUACCFIRM 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_VVISCSUACCFIRM 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_VVISCSUACCFIRM INTO WA_VVISCSUACCFIRM.


*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 REDAT, internal->external for field ASSIGNTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VVISCSUACCFIRM-ASSIGNTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVISCSUACCFIRM-ASSIGNTO.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_VVISCSUACCFIRM-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVISCSUACCFIRM-IMKEY.
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_VVISCSUACCFIRM_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
OBJNR TYPE STRING,
SKABRF TYPE STRING,
ASSIGNTO TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
XSU TYPE STRING,
EXCHANGETYPE TYPE STRING,
INTERNAL_OBJID TYPE STRING,
EXTERNAL_OBJID TYPE STRING,
SUTYPE TYPE STRING,
XMBEZ TYPE STRING,
XKBEZ TYPE STRING,
ABRKDNR TYPE STRING,
RESPONSIBLE TYPE STRING,
IMKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVISCSUACCFIRM_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_VVISCSUACCFIRM_STR-MANDT sy-vline 
WA_VVISCSUACCFIRM_STR-INTRENO sy-vline 
WA_VVISCSUACCFIRM_STR-OBJNR sy-vline 
WA_VVISCSUACCFIRM_STR-SKABRF sy-vline 
WA_VVISCSUACCFIRM_STR-ASSIGNTO sy-vline 
WA_VVISCSUACCFIRM_STR-BUKRS sy-vline 
WA_VVISCSUACCFIRM_STR-SWENR sy-vline 
WA_VVISCSUACCFIRM_STR-SNKSL sy-vline 
WA_VVISCSUACCFIRM_STR-SEMPSL sy-vline 
WA_VVISCSUACCFIRM_STR-XSU sy-vline 
WA_VVISCSUACCFIRM_STR-EXCHANGETYPE sy-vline 
WA_VVISCSUACCFIRM_STR-INTERNAL_OBJID sy-vline 
WA_VVISCSUACCFIRM_STR-EXTERNAL_OBJID sy-vline 
WA_VVISCSUACCFIRM_STR-SUTYPE sy-vline 
WA_VVISCSUACCFIRM_STR-XMBEZ sy-vline 
WA_VVISCSUACCFIRM_STR-XKBEZ sy-vline 
WA_VVISCSUACCFIRM_STR-ABRKDNR sy-vline 
WA_VVISCSUACCFIRM_STR-RESPONSIBLE sy-vline 
WA_VVISCSUACCFIRM_STR-IMKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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