ABAP Select data from SAP table CCABILLDOCREV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCABILLDOCREV
*  INTO TABLE @DATA(IT_CCABILLDOCREV2).
*--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_CCABILLDOCREV INDEX 1 INTO DATA(WA_CCABILLDOCREV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCABILLDOCREV>-MANDT = 1.
<CCABILLDOCREV>-CABILLGDOCUMENT = 1.
<CCABILLDOCREV>-CABILLGDOCREVERSALTASK = 1.
<CCABILLDOCREV>-CAREVERSALREQUESTSTATUS = 1.
<CCABILLDOCREV>-CABILLGDOCUMENTREVERSALREASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCABILLDOCREV-CABILLGDOCORIGINPROCESS, sy-vline,
  WA_CCABILLDOCREV-CABILLGPROCESS, sy-vline,
  WA_CCABILLDOCREV-CABILLGTYPE, sy-vline,
  WA_CCABILLDOCREV-CREATEDBYUSER, sy-vline,
  WA_CCABILLDOCREV-CREATIONDATE, sy-vline,
  WA_CCABILLDOCREV-BUSINESSPARTNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCABILLDOCREV 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_CCABILLDOCREV 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_CCABILLDOCREV INTO WA_CCABILLDOCREV.


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

*Conversion exit ALPHA, internal->external for field CONTRACTACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCABILLDOCREV-CONTRACTACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCABILLDOCREV-CONTRACTACCOUNT.
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_CCABILLDOCREV_STR, 
MANDT TYPE STRING,
CABILLGDOCUMENT TYPE STRING,
CABILLGDOCREVERSALTASK TYPE STRING,
CAREVERSALREQUESTSTATUS TYPE STRING,
CABILLGDOCUMENTREVERSALREASON TYPE STRING,
CABILLGDOCORIGINPROCESS TYPE STRING,
CABILLGPROCESS TYPE STRING,
CABILLGTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CAINVCGMASTERDATATYPE TYPE STRING,
CABILLGDOCCREATIONDATE TYPE STRING,
CABILLGDOCCREATIONTIME TYPE STRING,
CREATIONTIME TYPE STRING,
CADELETIONDATE TYPE STRING,
CAREVERSALREQUESTSTATUSTEXT TYPE STRING,
CAINVCGMASTERDATATYPETEXT TYPE STRING,
CABILLGDOCREVERSALREASONTEXT TYPE STRING,
CABILLGDOCORIGINPROCESSTEXT TYPE STRING,
CABILLGPROCESSTEXT TYPE STRING,
CABILLGTYPETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCABILLDOCREV_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_CCABILLDOCREV_STR-MANDT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCUMENT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCREVERSALTASK sy-vline 
WA_CCABILLDOCREV_STR-CAREVERSALREQUESTSTATUS sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCUMENTREVERSALREASON sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCORIGINPROCESS sy-vline 
WA_CCABILLDOCREV_STR-CABILLGPROCESS sy-vline 
WA_CCABILLDOCREV_STR-CABILLGTYPE sy-vline 
WA_CCABILLDOCREV_STR-CREATEDBYUSER sy-vline 
WA_CCABILLDOCREV_STR-CREATIONDATE sy-vline 
WA_CCABILLDOCREV_STR-BUSINESSPARTNER sy-vline 
WA_CCABILLDOCREV_STR-CONTRACTACCOUNT sy-vline 
WA_CCABILLDOCREV_STR-CAINVCGMASTERDATATYPE sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCCREATIONDATE sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCCREATIONTIME sy-vline 
WA_CCABILLDOCREV_STR-CREATIONTIME sy-vline 
WA_CCABILLDOCREV_STR-CADELETIONDATE sy-vline 
WA_CCABILLDOCREV_STR-CAREVERSALREQUESTSTATUSTEXT sy-vline 
WA_CCABILLDOCREV_STR-CAINVCGMASTERDATATYPETEXT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCREVERSALREASONTEXT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGDOCORIGINPROCESSTEXT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGPROCESSTEXT sy-vline 
WA_CCABILLDOCREV_STR-CABILLGTYPETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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