ABAP Select data from SAP table E3CVBPF into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3CVBPF 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 E3CVBPF. 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 E3CVBPF 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_E3CVBPF TYPE STANDARD TABLE OF E3CVBPF,
      WA_E3CVBPF TYPE E3CVBPF,
      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: <E3CVBPF> TYPE E3CVBPF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3CVBPF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3CVBPF
  INTO TABLE IT_E3CVBPF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3CVBPF
*  INTO TABLE @DATA(IT_E3CVBPF2).
*--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_E3CVBPF INDEX 1 INTO DATA(WA_E3CVBPF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3CVBPF ASSIGNING <E3CVBPF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3CVBPF>-SUPKZ = 1.
<E3CVBPF>-VBELN = 1.
<E3CVBPF>-POSNR = 1.
<E3CVBPF>-VBTYP = 1.
<E3CVBPF>-REFKZ = 1.

ENDLOOP.

LOOP AT IT_E3CVBPF INTO WA_E3CVBPF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3CVBPF-ERLMENGE, sy-vline,
  WA_E3CVBPF-ERLWERT, sy-vline,
  WA_E3CVBPF-ERLWERT_WA, sy-vline,
  WA_E3CVBPF-ERLMENGE_L, sy-vline,
  WA_E3CVBPF-ERLMENGE_F, sy-vline,
  WA_E3CVBPF-FAKLMENG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3CVBPF 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_E3CVBPF 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_E3CVBPF INTO WA_E3CVBPF.


*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_E3CVBPF-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBPF-VBELN.
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_E3CVBPF_STR, 
SUPKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
VBTYP TYPE STRING,
REFKZ TYPE STRING,
ERLMENGE TYPE STRING,
ERLWERT TYPE STRING,
ERLWERT_WA TYPE STRING,
ERLMENGE_L TYPE STRING,
ERLMENGE_F TYPE STRING,
FAKLMENG TYPE STRING,
AMENGE TYPE STRING,
BMENGE TYPE STRING,
CMENGE TYPE STRING,
DMENGE TYPE STRING,
EMENGE TYPE STRING,
FMENGE TYPE STRING,
GMENGE TYPE STRING,
HMENGE TYPE STRING,
IMENGE TYPE STRING,
JMENGE TYPE STRING,
KMENGE TYPE STRING,
LMENGE TYPE STRING,
MMENGE TYPE STRING,
NMENGE TYPE STRING,
OMENGE TYPE STRING,
PMENGE TYPE STRING,
QMENGE TYPE STRING,
RMENGE TYPE STRING,
SMENGE TYPE STRING,
TMENGE TYPE STRING,
UMENGE TYPE STRING,
VMENGE TYPE STRING,
WMENGE TYPE STRING,
XMENGE TYPE STRING,
YMENGE TYPE STRING,
ANZTAP TYPE STRING,
ANZQTAP TYPE STRING,
ANZLFP TYPE STRING,
ANZFKP TYPE STRING,
ANZFKP_IV TYPE STRING,
ANZWAP TYPE STRING,
WEMNG TYPE STRING,
REMNG TYPE STRING,
ANZLRP TYPE STRING,
ANZLGP TYPE STRING,
REWRT TYPE STRING,
WEWRT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3CVBPF_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_E3CVBPF_STR-SUPKZ sy-vline 
WA_E3CVBPF_STR-VBELN sy-vline 
WA_E3CVBPF_STR-POSNR sy-vline 
WA_E3CVBPF_STR-VBTYP sy-vline 
WA_E3CVBPF_STR-REFKZ sy-vline 
WA_E3CVBPF_STR-ERLMENGE sy-vline 
WA_E3CVBPF_STR-ERLWERT sy-vline 
WA_E3CVBPF_STR-ERLWERT_WA sy-vline 
WA_E3CVBPF_STR-ERLMENGE_L sy-vline 
WA_E3CVBPF_STR-ERLMENGE_F sy-vline 
WA_E3CVBPF_STR-FAKLMENG sy-vline 
WA_E3CVBPF_STR-AMENGE sy-vline 
WA_E3CVBPF_STR-BMENGE sy-vline 
WA_E3CVBPF_STR-CMENGE sy-vline 
WA_E3CVBPF_STR-DMENGE sy-vline 
WA_E3CVBPF_STR-EMENGE sy-vline 
WA_E3CVBPF_STR-FMENGE sy-vline 
WA_E3CVBPF_STR-GMENGE sy-vline 
WA_E3CVBPF_STR-HMENGE sy-vline 
WA_E3CVBPF_STR-IMENGE sy-vline 
WA_E3CVBPF_STR-JMENGE sy-vline 
WA_E3CVBPF_STR-KMENGE sy-vline 
WA_E3CVBPF_STR-LMENGE sy-vline 
WA_E3CVBPF_STR-MMENGE sy-vline 
WA_E3CVBPF_STR-NMENGE sy-vline 
WA_E3CVBPF_STR-OMENGE sy-vline 
WA_E3CVBPF_STR-PMENGE sy-vline 
WA_E3CVBPF_STR-QMENGE sy-vline 
WA_E3CVBPF_STR-RMENGE sy-vline 
WA_E3CVBPF_STR-SMENGE sy-vline 
WA_E3CVBPF_STR-TMENGE sy-vline 
WA_E3CVBPF_STR-UMENGE sy-vline 
WA_E3CVBPF_STR-VMENGE sy-vline 
WA_E3CVBPF_STR-WMENGE sy-vline 
WA_E3CVBPF_STR-XMENGE sy-vline 
WA_E3CVBPF_STR-YMENGE sy-vline 
WA_E3CVBPF_STR-ANZTAP sy-vline 
WA_E3CVBPF_STR-ANZQTAP sy-vline 
WA_E3CVBPF_STR-ANZLFP sy-vline 
WA_E3CVBPF_STR-ANZFKP sy-vline 
WA_E3CVBPF_STR-ANZFKP_IV sy-vline 
WA_E3CVBPF_STR-ANZWAP sy-vline 
WA_E3CVBPF_STR-WEMNG sy-vline 
WA_E3CVBPF_STR-REMNG sy-vline 
WA_E3CVBPF_STR-ANZLRP sy-vline 
WA_E3CVBPF_STR-ANZLGP sy-vline 
WA_E3CVBPF_STR-REWRT sy-vline 
WA_E3CVBPF_STR-WEWRT sy-vline      INTO ld_text SEPARATED BY SPACE.

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