ABAP Select data from SAP table E3CVBR2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3CVBR2 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 E3CVBR2. 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 E3CVBR2 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_E3CVBR2 TYPE STANDARD TABLE OF E3CVBR2,
      WA_E3CVBR2 TYPE E3CVBR2,
      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: <E3CVBR2> TYPE E3CVBR2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3CVBR2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3CVBR2
  INTO TABLE IT_E3CVBR2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3CVBR2
*  INTO TABLE @DATA(IT_E3CVBR22).
*--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_E3CVBR2 INDEX 1 INTO DATA(WA_E3CVBR22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3CVBR2 ASSIGNING <E3CVBR2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3CVBR2>-SUPKZ = 1.
<E3CVBR2>-VBELN = 1.
<E3CVBR2>-POSNR = 1.
<E3CVBR2>-APERDAT = 1.
<E3CVBR2>-APCMPRE = 1.

ENDLOOP.

LOOP AT IT_E3CVBR2 INTO WA_E3CVBR2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3CVBR2-OLIME, sy-vline,
  WA_E3CVBR2-OLIKW, sy-vline,
  WA_E3CVBR2-OFAME, sy-vline,
  WA_E3CVBR2-OFAKW, sy-vline,
  WA_E3CVBR2-PKUNAG, sy-vline,
  WA_E3CVBR2-PKUNWE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3CVBR2 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_E3CVBR2 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_E3CVBR2 INTO WA_E3CVBR2.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-PKUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-PKUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-PKUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-PKUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-PKUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-PKUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-PKUNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-PKUNRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSPDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBR2-PSPDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBR2-PSPDNR.
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_E3CVBR2_STR, 
SUPKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
APERDAT TYPE STRING,
APCMPRE TYPE STRING,
OLIME TYPE STRING,
OLIKW TYPE STRING,
OFAME TYPE STRING,
OFAKW TYPE STRING,
PKUNAG TYPE STRING,
PKUNWE TYPE STRING,
PKUNRE TYPE STRING,
PKUNRG TYPE STRING,
PSPDNR TYPE STRING,
PVRTNR TYPE STRING,
PLAAG TYPE STRING,
PLAWE TYPE STRING,
PLARE TYPE STRING,
PLARG TYPE STRING,
PLASP TYPE STRING,
PLAVE TYPE STRING,
PABLA TYPE STRING,
PZONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3CVBR2_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_E3CVBR2_STR-SUPKZ sy-vline 
WA_E3CVBR2_STR-VBELN sy-vline 
WA_E3CVBR2_STR-POSNR sy-vline 
WA_E3CVBR2_STR-APERDAT sy-vline 
WA_E3CVBR2_STR-APCMPRE sy-vline 
WA_E3CVBR2_STR-OLIME sy-vline 
WA_E3CVBR2_STR-OLIKW sy-vline 
WA_E3CVBR2_STR-OFAME sy-vline 
WA_E3CVBR2_STR-OFAKW sy-vline 
WA_E3CVBR2_STR-PKUNAG sy-vline 
WA_E3CVBR2_STR-PKUNWE sy-vline 
WA_E3CVBR2_STR-PKUNRE sy-vline 
WA_E3CVBR2_STR-PKUNRG sy-vline 
WA_E3CVBR2_STR-PSPDNR sy-vline 
WA_E3CVBR2_STR-PVRTNR sy-vline 
WA_E3CVBR2_STR-PLAAG sy-vline 
WA_E3CVBR2_STR-PLAWE sy-vline 
WA_E3CVBR2_STR-PLARE sy-vline 
WA_E3CVBR2_STR-PLARG sy-vline 
WA_E3CVBR2_STR-PLASP sy-vline 
WA_E3CVBR2_STR-PLAVE sy-vline 
WA_E3CVBR2_STR-PABLA sy-vline 
WA_E3CVBR2_STR-PZONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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