ABAP Select data from SAP table CSADL_VOC_CORR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSADL_VOC_CORR
*  INTO TABLE @DATA(IT_CSADL_VOC_CORR2).
*--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_CSADL_VOC_CORR INDEX 1 INTO DATA(WA_CSADL_VOC_CORR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSADL_VOC_CORR>-MANDT = 1.
<CSADL_VOC_CORR>-SALESORDERID = 1.
<CSADL_VOC_CORR>-CREATEDBY = 1.
<CSADL_VOC_CORR>-CREATEDAT = 1.
<CSADL_VOC_CORR>-CHANGEDBY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSADL_VOC_CORR-CREATIONDATE, sy-vline,
  WA_CSADL_VOC_CORR-CHANGEDAT, sy-vline,
  WA_CSADL_VOC_CORR-BUSINESSPARTNERGUID, sy-vline,
  WA_CSADL_VOC_CORR-BUSINESSPARTNERID, sy-vline,
  WA_CSADL_VOC_CORR-COMPANYNAME, sy-vline,
  WA_CSADL_VOC_CORR-CURRENCYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSADL_VOC_CORR 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_CSADL_VOC_CORR 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_CSADL_VOC_CORR INTO WA_CSADL_VOC_CORR.


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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSADL_VOC_CORR-BUSINESSPARTNERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSADL_VOC_CORR-BUSINESSPARTNERID.
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_CSADL_VOC_CORR_STR, 
MANDT TYPE STRING,
SALESORDERID TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDAT TYPE STRING,
CHANGEDBY TYPE STRING,
CREATIONDATE TYPE STRING,
CHANGEDAT TYPE STRING,
BUSINESSPARTNERGUID TYPE STRING,
BUSINESSPARTNERID TYPE STRING,
COMPANYNAME TYPE STRING,
CURRENCYCODE TYPE STRING,
CURRENCYTEXT TYPE STRING,
GROSSAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
LIFECYCLESTATUS TYPE STRING,
BILLINGSTATUS TYPE STRING,
DELIVERYSTATUS TYPE STRING,
OPPORTUNITYID TYPE STRING,
OVERALLSTATUS TYPE STRING,
NODE_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSADL_VOC_CORR_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_CSADL_VOC_CORR_STR-MANDT sy-vline 
WA_CSADL_VOC_CORR_STR-SALESORDERID sy-vline 
WA_CSADL_VOC_CORR_STR-CREATEDBY sy-vline 
WA_CSADL_VOC_CORR_STR-CREATEDAT sy-vline 
WA_CSADL_VOC_CORR_STR-CHANGEDBY sy-vline 
WA_CSADL_VOC_CORR_STR-CREATIONDATE sy-vline 
WA_CSADL_VOC_CORR_STR-CHANGEDAT sy-vline 
WA_CSADL_VOC_CORR_STR-BUSINESSPARTNERGUID sy-vline 
WA_CSADL_VOC_CORR_STR-BUSINESSPARTNERID sy-vline 
WA_CSADL_VOC_CORR_STR-COMPANYNAME sy-vline 
WA_CSADL_VOC_CORR_STR-CURRENCYCODE sy-vline 
WA_CSADL_VOC_CORR_STR-CURRENCYTEXT sy-vline 
WA_CSADL_VOC_CORR_STR-GROSSAMOUNT sy-vline 
WA_CSADL_VOC_CORR_STR-NETAMOUNT sy-vline 
WA_CSADL_VOC_CORR_STR-TAXAMOUNT sy-vline 
WA_CSADL_VOC_CORR_STR-LIFECYCLESTATUS sy-vline 
WA_CSADL_VOC_CORR_STR-BILLINGSTATUS sy-vline 
WA_CSADL_VOC_CORR_STR-DELIVERYSTATUS sy-vline 
WA_CSADL_VOC_CORR_STR-OPPORTUNITYID sy-vline 
WA_CSADL_VOC_CORR_STR-OVERALLSTATUS sy-vline 
WA_CSADL_VOC_CORR_STR-NODE_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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