ABAP Select data from SAP table VIXCESCDLOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIXCESCDLOG
*  INTO TABLE @DATA(IT_VIXCESCDLOG2).
*--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_VIXCESCDLOG INDEX 1 INTO DATA(WA_VIXCESCDLOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIXCESCDLOG>-MANDT = 1.
<VIXCESCDLOG>-AUTCOMISO = 1.
<VIXCESCDLOG>-INTRENO = 1.
<VIXCESCDLOG>-DATEFROM = 1.
<VIXCESCDLOG>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIXCESCDLOG-DUEDATE, sy-vline,
  WA_VIXCESCDLOG-DATETO, sy-vline,
  WA_VIXCESCDLOG-AMOUNT, sy-vline,
  WA_VIXCESCDLOG-CURRENCY, sy-vline,
  WA_VIXCESCDLOG-PARTNER, sy-vline,
  WA_VIXCESCDLOG-INTRENS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIXCESCDLOG 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_VIXCESCDLOG 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_VIXCESCDLOG INTO WA_VIXCESCDLOG.


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

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIXCESCDLOG-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIXCESCDLOG-PARTNER.
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_VIXCESCDLOG_STR, 
MANDT TYPE STRING,
AUTCOMISO TYPE STRING,
INTRENO TYPE STRING,
DATEFROM TYPE STRING,
BUKRS TYPE STRING,
DUEDATE TYPE STRING,
DATETO TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
PARTNER TYPE STRING,
INTRENS TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIXCESCDLOG_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_VIXCESCDLOG_STR-MANDT sy-vline 
WA_VIXCESCDLOG_STR-AUTCOMISO sy-vline 
WA_VIXCESCDLOG_STR-INTRENO sy-vline 
WA_VIXCESCDLOG_STR-DATEFROM sy-vline 
WA_VIXCESCDLOG_STR-BUKRS sy-vline 
WA_VIXCESCDLOG_STR-DUEDATE sy-vline 
WA_VIXCESCDLOG_STR-DATETO sy-vline 
WA_VIXCESCDLOG_STR-AMOUNT sy-vline 
WA_VIXCESCDLOG_STR-CURRENCY sy-vline 
WA_VIXCESCDLOG_STR-PARTNER sy-vline 
WA_VIXCESCDLOG_STR-INTRENS sy-vline 
WA_VIXCESCDLOG_STR-RERF sy-vline 
WA_VIXCESCDLOG_STR-DERF sy-vline 
WA_VIXCESCDLOG_STR-TERF sy-vline 
WA_VIXCESCDLOG_STR-REHER sy-vline 
WA_VIXCESCDLOG_STR-RBEAR sy-vline 
WA_VIXCESCDLOG_STR-DBEAR sy-vline 
WA_VIXCESCDLOG_STR-TBEAR sy-vline 
WA_VIXCESCDLOG_STR-RBHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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