ABAP Select data from SAP table E3CVBA2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3CVBA2 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 E3CVBA2. 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 E3CVBA2 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_E3CVBA2 TYPE STANDARD TABLE OF E3CVBA2,
      WA_E3CVBA2 TYPE E3CVBA2,
      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: <E3CVBA2> TYPE E3CVBA2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3CVBA2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3CVBA2
  INTO TABLE IT_E3CVBA2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3CVBA2
*  INTO TABLE @DATA(IT_E3CVBA22).
*--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_E3CVBA2 INDEX 1 INTO DATA(WA_E3CVBA22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3CVBA2 ASSIGNING <E3CVBA2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3CVBA2>-SUPKZ = 1.
<E3CVBA2>-VBELN = 1.
<E3CVBA2>-POSNR = 1.
<E3CVBA2>-PAOBJNR = 1.
<E3CVBA2>-PS_PSP_PNR = 1.

ENDLOOP.

LOOP AT IT_E3CVBA2 INTO WA_E3CVBA2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3CVBA2-AUFNR, sy-vline,
  WA_E3CVBA2-VPMAT, sy-vline,
  WA_E3CVBA2-VPWRK, sy-vline,
  WA_E3CVBA2-PRBME, sy-vline,
  WA_E3CVBA2-UMREF, sy-vline,
  WA_E3CVBA2-KNTTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3CVBA2 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_E3CVBA2 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_E3CVBA2 INTO WA_E3CVBA2.


*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_E3CVBA2-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VPMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-VPMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-VPMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRBME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PRBME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PRBME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field CMKUA
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-CMKUA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-CMKUA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field SPOSN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-SPOSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-SPOSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PKUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PKUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PKUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PKUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PKUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PKUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PKUNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-PKUNRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSPDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CVBA2-PSPDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CVBA2-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_E3CVBA2_STR, 
SUPKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PAOBJNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
AUFNR TYPE STRING,
VPMAT TYPE STRING,
VPWRK TYPE STRING,
PRBME TYPE STRING,
UMREF TYPE STRING,
KNTTP TYPE STRING,
KZVBR TYPE STRING,
SERNR TYPE STRING,
OBJNR TYPE STRING,
ABGRS TYPE STRING,
BEDAE TYPE STRING,
CMPRE TYPE STRING,
CMTFG TYPE STRING,
CMPNT TYPE STRING,
CMKUA TYPE STRING,
CUOBJ TYPE STRING,
CUOBJ_CH TYPE STRING,
CEPOK TYPE STRING,
KOUPD TYPE STRING,
SERAIL TYPE STRING,
ANZSN TYPE STRING,
NACHL TYPE STRING,
MAGRV TYPE STRING,
MPROK TYPE STRING,
VGTYP TYPE STRING,
PROSA TYPE STRING,
UEPVW TYPE STRING,
KALNR TYPE STRING,
KLVAR TYPE STRING,
SPOSN TYPE STRING,
KOWRR TYPE STRING,
STADAT TYPE STRING,
EXART TYPE STRING,
PREFE TYPE STRING,
KNUMH TYPE STRING,
CLINT TYPE STRING,
CHMVS TYPE STRING,
VDATU TYPE STRING,
OAUME TYPE STRING,
OAUWE TYPE STRING,
OLIME TYPE STRING,
OLIKW TYPE STRING,
OLIMEAU TYPE STRING,
OLIKWAU TYPE STRING,
PKUNAG TYPE STRING,
PKUNWE TYPE STRING,
PKUNRE TYPE STRING,
PKUNRG TYPE STRING,
PSPDNR TYPE STRING,
PVRTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3CVBA2_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_E3CVBA2_STR-SUPKZ sy-vline 
WA_E3CVBA2_STR-VBELN sy-vline 
WA_E3CVBA2_STR-POSNR sy-vline 
WA_E3CVBA2_STR-PAOBJNR sy-vline 
WA_E3CVBA2_STR-PS_PSP_PNR sy-vline 
WA_E3CVBA2_STR-AUFNR sy-vline 
WA_E3CVBA2_STR-VPMAT sy-vline 
WA_E3CVBA2_STR-VPWRK sy-vline 
WA_E3CVBA2_STR-PRBME sy-vline 
WA_E3CVBA2_STR-UMREF sy-vline 
WA_E3CVBA2_STR-KNTTP sy-vline 
WA_E3CVBA2_STR-KZVBR sy-vline 
WA_E3CVBA2_STR-SERNR sy-vline 
WA_E3CVBA2_STR-OBJNR sy-vline 
WA_E3CVBA2_STR-ABGRS sy-vline 
WA_E3CVBA2_STR-BEDAE sy-vline 
WA_E3CVBA2_STR-CMPRE sy-vline 
WA_E3CVBA2_STR-CMTFG sy-vline 
WA_E3CVBA2_STR-CMPNT sy-vline 
WA_E3CVBA2_STR-CMKUA sy-vline 
WA_E3CVBA2_STR-CUOBJ sy-vline 
WA_E3CVBA2_STR-CUOBJ_CH sy-vline 
WA_E3CVBA2_STR-CEPOK sy-vline 
WA_E3CVBA2_STR-KOUPD sy-vline 
WA_E3CVBA2_STR-SERAIL sy-vline 
WA_E3CVBA2_STR-ANZSN sy-vline 
WA_E3CVBA2_STR-NACHL sy-vline 
WA_E3CVBA2_STR-MAGRV sy-vline 
WA_E3CVBA2_STR-MPROK sy-vline 
WA_E3CVBA2_STR-VGTYP sy-vline 
WA_E3CVBA2_STR-PROSA sy-vline 
WA_E3CVBA2_STR-UEPVW sy-vline 
WA_E3CVBA2_STR-KALNR sy-vline 
WA_E3CVBA2_STR-KLVAR sy-vline 
WA_E3CVBA2_STR-SPOSN sy-vline 
WA_E3CVBA2_STR-KOWRR sy-vline 
WA_E3CVBA2_STR-STADAT sy-vline 
WA_E3CVBA2_STR-EXART sy-vline 
WA_E3CVBA2_STR-PREFE sy-vline 
WA_E3CVBA2_STR-KNUMH sy-vline 
WA_E3CVBA2_STR-CLINT sy-vline 
WA_E3CVBA2_STR-CHMVS sy-vline 
WA_E3CVBA2_STR-VDATU sy-vline 
WA_E3CVBA2_STR-OAUME sy-vline 
WA_E3CVBA2_STR-OAUWE sy-vline 
WA_E3CVBA2_STR-OLIME sy-vline 
WA_E3CVBA2_STR-OLIKW sy-vline 
WA_E3CVBA2_STR-OLIMEAU sy-vline 
WA_E3CVBA2_STR-OLIKWAU sy-vline 
WA_E3CVBA2_STR-PKUNAG sy-vline 
WA_E3CVBA2_STR-PKUNWE sy-vline 
WA_E3CVBA2_STR-PKUNRE sy-vline 
WA_E3CVBA2_STR-PKUNRG sy-vline 
WA_E3CVBA2_STR-PSPDNR sy-vline 
WA_E3CVBA2_STR-PVRTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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