ABAP Select data from SAP table VIYCCAP_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIYCCAP_TAB
*  INTO TABLE @DATA(IT_VIYCCAP_TAB2).
*--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_VIYCCAP_TAB INDEX 1 INTO DATA(WA_VIYCCAP_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIYCCAP_TAB>-VALIDTO = 1.
<VIYCCAP_TAB>-TERMNONAME = 1.
<VIYCCAP_TAB>-CAPPINGRATEPRE = 1.
<VIYCCAP_TAB>-CAPPINGAMNTPRE = 1.
<VIYCCAP_TAB>-LESSAMNTRATEPRE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIYCCAP_TAB-CAPPINGINCRPRE, sy-vline,
  WA_VIYCCAP_TAB-INDEXPRE1, sy-vline,
  WA_VIYCCAP_TAB-INDEXPRE2, sy-vline,
  WA_VIYCCAP_TAB-INDEXPRE3, sy-vline,
  WA_VIYCCAP_TAB-CUMULATIVEPRE, sy-vline,
  WA_VIYCCAP_TAB-CAPPINGRATEPOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIYCCAP_TAB 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_VIYCCAP_TAB 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_VIYCCAP_TAB INTO WA_VIYCCAP_TAB.


*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 VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCCAP_TAB-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCCAP_TAB-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field FEINSPOS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCCAP_TAB-FEINSPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCCAP_TAB-FEINSPOS.
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_VIYCCAP_TAB_STR, 
VALIDTO TYPE STRING,
TERMNONAME TYPE STRING,
CAPPINGRATEPRE TYPE STRING,
CAPPINGAMNTPRE TYPE STRING,
LESSAMNTRATEPRE TYPE STRING,
CAPPINGINCRPRE TYPE STRING,
INDEXPRE1 TYPE STRING,
INDEXPRE2 TYPE STRING,
INDEXPRE3 TYPE STRING,
CUMULATIVEPRE TYPE STRING,
CAPPINGRATEPOS TYPE STRING,
CAPPINGAMNTPOS TYPE STRING,
CAPPINGINCRPOS TYPE STRING,
LESSAMNTRATEPOS TYPE STRING,
INDEXPOS1 TYPE STRING,
INDEXPOS2 TYPE STRING,
INDEXPOS3 TYPE STRING,
CUMULATIVEPOS TYPE STRING,
FEINSPRE TYPE STRING,
FEINSPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIYCCAP_TAB_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_VIYCCAP_TAB_STR-VALIDTO sy-vline 
WA_VIYCCAP_TAB_STR-TERMNONAME sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGRATEPRE sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGAMNTPRE sy-vline 
WA_VIYCCAP_TAB_STR-LESSAMNTRATEPRE sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGINCRPRE sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPRE1 sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPRE2 sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPRE3 sy-vline 
WA_VIYCCAP_TAB_STR-CUMULATIVEPRE sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGRATEPOS sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGAMNTPOS sy-vline 
WA_VIYCCAP_TAB_STR-CAPPINGINCRPOS sy-vline 
WA_VIYCCAP_TAB_STR-LESSAMNTRATEPOS sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPOS1 sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPOS2 sy-vline 
WA_VIYCCAP_TAB_STR-INDEXPOS3 sy-vline 
WA_VIYCCAP_TAB_STR-CUMULATIVEPOS sy-vline 
WA_VIYCCAP_TAB_STR-FEINSPRE sy-vline 
WA_VIYCCAP_TAB_STR-FEINSPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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