ABAP Select data from SAP table PESVF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PESVF
*  INTO TABLE @DATA(IT_PESVF2).
*--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_PESVF INDEX 1 INTO DATA(WA_PESVF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PESVF>-MATNR = 1.
<PESVF>-VRKME = 1.
<PESVF>-EAN11 = 1.
<PESVF>-VKORG = 1.
<PESVF>-VTWEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PESVF-WERKS, sy-vline,
  WA_PESVF-BBETR, sy-vline,
  WA_PESVF-BWAER, sy-vline,
  WA_PESVF-BPEIN, sy-vline,
  WA_PESVF-BMEIN, sy-vline,
  WA_PESVF-NBETR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PESVF 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_PESVF 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_PESVF INTO WA_PESVF.


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

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

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_PESVF-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PESVF-EAN11.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field UMMAB
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PESVF-UMMAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PESVF-UMMAB.
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_PESVF_STR, 
MATNR TYPE STRING,
VRKME TYPE STRING,
EAN11 TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
BBETR TYPE STRING,
BWAER TYPE STRING,
BPEIN TYPE STRING,
BMEIN TYPE STRING,
NBETR TYPE STRING,
NWAER TYPE STRING,
NPEIN TYPE STRING,
NMEIN TYPE STRING,
AKTNR TYPE STRING,
AKTBW TYPE STRING,
BWTAR TYPE STRING,
BEWVK TYPE STRING,
BWERT TYPE STRING,
NWERT TYPE STRING,
KWAER TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
VKKAB TYPE STRING,
VKKBI TYPE STRING,
PBIND TYPE STRING,
VORGA TYPE STRING,
KBELN TYPE STRING,
KBELP TYPE STRING,
FRBNR TYPE STRING,
PVGRD TYPE STRING,
URZEI TYPE STRING,
ZEILE TYPE STRING,
XKOND TYPE STRING,
RVDOC TYPE STRING,
KZUML TYPE STRING,
XHEAD TYPE STRING,
ATTYP TYPE STRING,
SHKZG TYPE STRING,
BUDAT TYPE STRING,
MEINS TYPE STRING,
VKWRT TYPE STRING,
UMVKW TYPE STRING,
EXVKW TYPE STRING,
VKWRA TYPE STRING,
UMVKA TYPE STRING,
WAERS TYPE STRING,
UMWAE TYPE STRING,
BUKRS TYPE STRING,
BWKEY TYPE STRING,
LGORT TYPE STRING,
VKSAL TYPE STRING,
VKLAB TYPE STRING,
LBKUM TYPE STRING,
UMMAT TYPE STRING,
UMWRK TYPE STRING,
UMBAR TYPE STRING,
UMBWK TYPE STRING,
UMLGO TYPE STRING,
UMBUK TYPE STRING,
UMLBK TYPE STRING,
UMXVK TYPE STRING,
MATBF TYPE STRING,
UMMAB TYPE STRING,
MGAME TYPE STRING,
MATKL TYPE STRING,
MENGE TYPE STRING,
MWSKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PESVF_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_PESVF_STR-MATNR sy-vline 
WA_PESVF_STR-VRKME sy-vline 
WA_PESVF_STR-EAN11 sy-vline 
WA_PESVF_STR-VKORG sy-vline 
WA_PESVF_STR-VTWEG sy-vline 
WA_PESVF_STR-WERKS sy-vline 
WA_PESVF_STR-BBETR sy-vline 
WA_PESVF_STR-BWAER sy-vline 
WA_PESVF_STR-BPEIN sy-vline 
WA_PESVF_STR-BMEIN sy-vline 
WA_PESVF_STR-NBETR sy-vline 
WA_PESVF_STR-NWAER sy-vline 
WA_PESVF_STR-NPEIN sy-vline 
WA_PESVF_STR-NMEIN sy-vline 
WA_PESVF_STR-AKTNR sy-vline 
WA_PESVF_STR-AKTBW sy-vline 
WA_PESVF_STR-BWTAR sy-vline 
WA_PESVF_STR-BEWVK sy-vline 
WA_PESVF_STR-BWERT sy-vline 
WA_PESVF_STR-NWERT sy-vline 
WA_PESVF_STR-KWAER sy-vline 
WA_PESVF_STR-UMVKZ sy-vline 
WA_PESVF_STR-UMVKN sy-vline 
WA_PESVF_STR-VKKAB sy-vline 
WA_PESVF_STR-VKKBI sy-vline 
WA_PESVF_STR-PBIND sy-vline 
WA_PESVF_STR-VORGA sy-vline 
WA_PESVF_STR-KBELN sy-vline 
WA_PESVF_STR-KBELP sy-vline 
WA_PESVF_STR-FRBNR sy-vline 
WA_PESVF_STR-PVGRD sy-vline 
WA_PESVF_STR-URZEI sy-vline 
WA_PESVF_STR-ZEILE sy-vline 
WA_PESVF_STR-XKOND sy-vline 
WA_PESVF_STR-RVDOC sy-vline 
WA_PESVF_STR-KZUML sy-vline 
WA_PESVF_STR-XHEAD sy-vline 
WA_PESVF_STR-ATTYP sy-vline 
WA_PESVF_STR-SHKZG sy-vline 
WA_PESVF_STR-BUDAT sy-vline 
WA_PESVF_STR-MEINS sy-vline 
WA_PESVF_STR-VKWRT sy-vline 
WA_PESVF_STR-UMVKW sy-vline 
WA_PESVF_STR-EXVKW sy-vline 
WA_PESVF_STR-VKWRA sy-vline 
WA_PESVF_STR-UMVKA sy-vline 
WA_PESVF_STR-WAERS sy-vline 
WA_PESVF_STR-UMWAE sy-vline 
WA_PESVF_STR-BUKRS sy-vline 
WA_PESVF_STR-BWKEY sy-vline 
WA_PESVF_STR-LGORT sy-vline 
WA_PESVF_STR-VKSAL sy-vline 
WA_PESVF_STR-VKLAB sy-vline 
WA_PESVF_STR-LBKUM sy-vline 
WA_PESVF_STR-UMMAT sy-vline 
WA_PESVF_STR-UMWRK sy-vline 
WA_PESVF_STR-UMBAR sy-vline 
WA_PESVF_STR-UMBWK sy-vline 
WA_PESVF_STR-UMLGO sy-vline 
WA_PESVF_STR-UMBUK sy-vline 
WA_PESVF_STR-UMLBK sy-vline 
WA_PESVF_STR-UMXVK sy-vline 
WA_PESVF_STR-MATBF sy-vline 
WA_PESVF_STR-UMMAB sy-vline 
WA_PESVF_STR-MGAME sy-vline 
WA_PESVF_STR-MATKL sy-vline 
WA_PESVF_STR-MENGE sy-vline 
WA_PESVF_STR-MWSKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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