ABAP Select data from SAP table VIYCSETTL_TAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VIYCSETTL_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 VIYCSETTL_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 VIYCSETTL_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_VIYCSETTL_TAB TYPE STANDARD TABLE OF VIYCSETTL_TAB,
      WA_VIYCSETTL_TAB TYPE VIYCSETTL_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: <VIYCSETTL_TAB> TYPE VIYCSETTL_TAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIYCSETTL_TAB
*  INTO TABLE @DATA(IT_VIYCSETTL_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_VIYCSETTL_TAB INDEX 1 INTO DATA(WA_VIYCSETTL_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIYCSETTL_TAB>-SETTLMODE = 1.
<VIYCSETTL_TAB>-SETTLTYPE = 1.
<VIYCSETTL_TAB>-PURPOSE = 1.
<VIYCSETTL_TAB>-FLG_REVERSAL = 1.
<VIYCSETTL_TAB>-PFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIYCSETTL_TAB-PTO, sy-vline,
  WA_VIYCSETTL_TAB-SPOOLNR, sy-vline,
  WA_VIYCSETTL_TAB-SANPNR, sy-vline,
  WA_VIYCSETTL_TAB-HEADERTXT, sy-vline,
  WA_VIYCSETTL_TAB-PSTNGDATE, sy-vline,
  WA_VIYCSETTL_TAB-DOCDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIYCSETTL_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_VIYCSETTL_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_VIYCSETTL_TAB INTO WA_VIYCSETTL_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 PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCSETTL_TAB-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCSETTL_TAB-PTO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VIYCSETTL_TAB-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCSETTL_TAB-SWENR.
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_VIYCSETTL_TAB_STR, 
SETTLMODE TYPE STRING,
SETTLTYPE TYPE STRING,
PURPOSE TYPE STRING,
FLG_REVERSAL TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
SPOOLNR TYPE STRING,
SANPNR TYPE STRING,
HEADERTXT TYPE STRING,
PSTNGDATE TYPE STRING,
DOCDATE TYPE STRING,
BLINEDATE TYPE STRING,
LAST_STEP TYPE STRING,
PARAMKEY TYPE STRING,
DOCCOUNTER TYPE STRING,
AJPROCESSGUID TYPE STRING,
KEYDATECOP TYPE STRING,
TAXDATE TYPE STRING,
VERSION TYPE STRING,
MEASKEYDATE TYPE STRING,
FINAL TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIYCSETTL_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_VIYCSETTL_TAB_STR-SETTLMODE sy-vline 
WA_VIYCSETTL_TAB_STR-SETTLTYPE sy-vline 
WA_VIYCSETTL_TAB_STR-PURPOSE sy-vline 
WA_VIYCSETTL_TAB_STR-FLG_REVERSAL sy-vline 
WA_VIYCSETTL_TAB_STR-PFROM sy-vline 
WA_VIYCSETTL_TAB_STR-PTO sy-vline 
WA_VIYCSETTL_TAB_STR-SPOOLNR sy-vline 
WA_VIYCSETTL_TAB_STR-SANPNR sy-vline 
WA_VIYCSETTL_TAB_STR-HEADERTXT sy-vline 
WA_VIYCSETTL_TAB_STR-PSTNGDATE sy-vline 
WA_VIYCSETTL_TAB_STR-DOCDATE sy-vline 
WA_VIYCSETTL_TAB_STR-BLINEDATE sy-vline 
WA_VIYCSETTL_TAB_STR-LAST_STEP sy-vline 
WA_VIYCSETTL_TAB_STR-PARAMKEY sy-vline 
WA_VIYCSETTL_TAB_STR-DOCCOUNTER sy-vline 
WA_VIYCSETTL_TAB_STR-AJPROCESSGUID sy-vline 
WA_VIYCSETTL_TAB_STR-KEYDATECOP sy-vline 
WA_VIYCSETTL_TAB_STR-TAXDATE sy-vline 
WA_VIYCSETTL_TAB_STR-VERSION sy-vline 
WA_VIYCSETTL_TAB_STR-MEASKEYDATE sy-vline 
WA_VIYCSETTL_TAB_STR-FINAL sy-vline 
WA_VIYCSETTL_TAB_STR-BUKRS sy-vline 
WA_VIYCSETTL_TAB_STR-SWENR sy-vline      INTO ld_text SEPARATED BY SPACE.

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