ABAP Select data from SAP table CCAINVOVWBLLRQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAINVOVWBLLRQ
*  INTO TABLE @DATA(IT_CCAINVOVWBLLRQ2).
*--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_CCAINVOVWBLLRQ INDEX 1 INTO DATA(WA_CCAINVOVWBLLRQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAINVOVWBLLRQ>-MANDT = 1.
<CCAINVOVWBLLRQ>-CABILLGREQDOCUMENT = 1.
<CCAINVOVWBLLRQ>-CABILLGREQSTATUS = 1.
<CCAINVOVWBLLRQ>-CABILLGREQSTATUSTEXT = 1.
<CCAINVOVWBLLRQ>-CABILLGREQCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAINVOVWBLLRQ-CABILLGREQCATEGORYTEXT, sy-vline,
  WA_CCAINVOVWBLLRQ-CABILLGREQTYPE, sy-vline,
  WA_CCAINVOVWBLLRQ-CABILLGREQTYPETEXT, sy-vline,
  WA_CCAINVOVWBLLRQ-CABILLGREQREASON, sy-vline,
  WA_CCAINVOVWBLLRQ-CABILLGREQREASONTEXT, sy-vline,
  WA_CCAINVOVWBLLRQ-CABILLGREQTOTALAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAINVOVWBLLRQ 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_CCAINVOVWBLLRQ 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_CCAINVOVWBLLRQ INTO WA_CCAINVOVWBLLRQ.


*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 CONTRACTACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINVOVWBLLRQ-CONTRACTACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINVOVWBLLRQ-CONTRACTACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINVOVWBLLRQ-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINVOVWBLLRQ-BUSINESSPARTNER.
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_CCAINVOVWBLLRQ_STR, 
MANDT TYPE STRING,
CABILLGREQDOCUMENT TYPE STRING,
CABILLGREQSTATUS TYPE STRING,
CABILLGREQSTATUSTEXT TYPE STRING,
CABILLGREQCATEGORY TYPE STRING,
CABILLGREQCATEGORYTEXT TYPE STRING,
CABILLGREQTYPE TYPE STRING,
CABILLGREQTYPETEXT TYPE STRING,
CABILLGREQREASON TYPE STRING,
CABILLGREQREASONTEXT TYPE STRING,
CABILLGREQTOTALAMOUNT TYPE STRING,
CABILLGREQTOTALAMOUNTCURRENCY TYPE STRING,
CABILLGREQCREATIONUSER TYPE STRING,
CABILLGREQCREATIONDATE TYPE STRING,
CABILLGREQDESCRIPTION TYPE STRING,
CAAPPLICATIONAREA TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CAINVOICINGDOCUMENT TYPE STRING,
CABILLGREQCREATIONTIME TYPE STRING,
CABILLGREQCHANGEUSER TYPE STRING,
CABILLGREQCHANGEDATE TYPE STRING,
CABILLGREQCHANGETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAINVOVWBLLRQ_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_CCAINVOVWBLLRQ_STR-MANDT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQDOCUMENT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQSTATUS sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQSTATUSTEXT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCATEGORY sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCATEGORYTEXT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQTYPE sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQTYPETEXT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQREASON sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQREASONTEXT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQTOTALAMOUNT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQTOTALAMOUNTCURRENCY sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCREATIONUSER sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCREATIONDATE sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQDESCRIPTION sy-vline 
WA_CCAINVOVWBLLRQ_STR-CAAPPLICATIONAREA sy-vline 
WA_CCAINVOVWBLLRQ_STR-CONTRACTACCOUNT sy-vline 
WA_CCAINVOVWBLLRQ_STR-BUSINESSPARTNER sy-vline 
WA_CCAINVOVWBLLRQ_STR-CAINVOICINGDOCUMENT sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCREATIONTIME sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCHANGEUSER sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCHANGEDATE sy-vline 
WA_CCAINVOVWBLLRQ_STR-CABILLGREQCHANGETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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