ABAP Select data from SAP table PBVAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PBVAB
*  INTO TABLE @DATA(IT_PBVAB2).
*--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_PBVAB INDEX 1 INTO DATA(WA_PBVAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PBVAB>-PLNKZ = 1.
<PBVAB>-ZUVKZ = 1.
<PBVAB>-PLAAB = 1.
<PBVAB>-PLANR = 1.
<PBVAB>-PDATU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PBVAB-PLNMG, sy-vline,
  WA_PBVAB-ENTMG, sy-vline,
  WA_PBVAB-ENTMA, sy-vline,
  WA_PBVAB-FREIM, sy-vline,
  WA_PBVAB-ADDMG, sy-vline,
  WA_PBVAB-SUBMG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PBVAB 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_PBVAB 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_PBVAB INTO WA_PBVAB.


*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_PBVAB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PBVAB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PBVAB-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PBVAB-KDAUF.
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_PBVAB_STR, 
PLNKZ TYPE STRING,
ZUVKZ TYPE STRING,
PLAAB TYPE STRING,
PLANR TYPE STRING,
PDATU TYPE STRING,
PLNMG TYPE STRING,
ENTMG TYPE STRING,
ENTMA TYPE STRING,
FREIM TYPE STRING,
ADDMG TYPE STRING,
SUBMG TYPE STRING,
BEDAE TYPE STRING,
VERSB TYPE STRING,
PBDNR TYPE STRING,
BDZEI TYPE STRING,
VERVS TYPE STRING,
VERKZ TYPE STRING,
MATNR TYPE STRING,
POSNR TYPE STRING,
KNTTP TYPE STRING,
KZVBR TYPE STRING,
SOBKZ TYPE STRING,
PSPEL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
OPLKZ TYPE STRING,
VERID TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
ENTLI TYPE STRING,
SGT_RCAT TYPE STRING,
PBDNR_EXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PBVAB_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_PBVAB_STR-PLNKZ sy-vline 
WA_PBVAB_STR-ZUVKZ sy-vline 
WA_PBVAB_STR-PLAAB sy-vline 
WA_PBVAB_STR-PLANR sy-vline 
WA_PBVAB_STR-PDATU sy-vline 
WA_PBVAB_STR-PLNMG sy-vline 
WA_PBVAB_STR-ENTMG sy-vline 
WA_PBVAB_STR-ENTMA sy-vline 
WA_PBVAB_STR-FREIM sy-vline 
WA_PBVAB_STR-ADDMG sy-vline 
WA_PBVAB_STR-SUBMG sy-vline 
WA_PBVAB_STR-BEDAE sy-vline 
WA_PBVAB_STR-VERSB sy-vline 
WA_PBVAB_STR-PBDNR sy-vline 
WA_PBVAB_STR-BDZEI sy-vline 
WA_PBVAB_STR-VERVS sy-vline 
WA_PBVAB_STR-VERKZ sy-vline 
WA_PBVAB_STR-MATNR sy-vline 
WA_PBVAB_STR-POSNR sy-vline 
WA_PBVAB_STR-KNTTP sy-vline 
WA_PBVAB_STR-KZVBR sy-vline 
WA_PBVAB_STR-SOBKZ sy-vline 
WA_PBVAB_STR-PSPEL sy-vline 
WA_PBVAB_STR-KDAUF sy-vline 
WA_PBVAB_STR-KDPOS sy-vline 
WA_PBVAB_STR-OPLKZ sy-vline 
WA_PBVAB_STR-VERID sy-vline 
WA_PBVAB_STR-WERKS sy-vline 
WA_PBVAB_STR-BERID sy-vline 
WA_PBVAB_STR-ENTLI sy-vline 
WA_PBVAB_STR-SGT_RCAT sy-vline 
WA_PBVAB_STR-PBDNR_EXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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